Reland "[Offline indicator v2] Add Java animations"

This is a reland of b5018edf

Original change's description:
> [Offline indicator v2] Add Java animations
> 
> This CL implements the color and text transition animations that run when
> showing or hiding the status indicator.
> 
> Show:
> 1- Transition the status bar color.
> 2- Wait for the browser controls animation in cc to finish.
> 3- Fade in text.
> 
> Hide:
> 1- Transition the status bar and the indicator color.
> 2- Wait 2 seconds.
> 3- Fade out text, and transition the status bar and indicator color back
> to the original status bar color.
> 4- Let the browser controls hide animation run in cc.
> 
> Bug: 989148
> Change-Id: If19a51e6c5091436d78e34ef50f11ffa0118ee0d
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2067095
> Commit-Queue: Sinan Sahin <sinansahin@google.com>
> Reviewed-by: Matthew Jones <mdjones@chromium.org>
> Reviewed-by: Theresa  <twellington@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#747080}

Bug: 989148
Change-Id: I0bf7813c4ef7833d66e449863d16cc1068bc9572
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2090015Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Sinan Sahin <sinansahin@google.com>
Cr-Commit-Position: refs/heads/master@{#747439}

chrome/android/java/res/layout/status_indicator_container.xml

@@ -8,14 +8,15 @@
     android:id="@+id/status_indicator"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:background="@android:color/black">
+    android:background="@color/modern_primary_color">
 
     <org.chromium.components.browser_ui.widget.text.TextViewWithCompoundDrawables
         android:id="@+id/status_text"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
         android:minHeight="20dp"
         android:textAlignment="center"
-        android:drawablePadding="8dp" />
+        android:drawablePadding="8dp"
+        android:textAppearance="@style/TextAppearance.TextSmall.Primary"/>
 </org.chromium.components.browser_ui.widget.ViewResourceFrameLayout>

chrome/android/java/res/values/colors.xml

@@ -133,6 +133,10 @@
     <!-- Prefetch article colors -->
     <color name="prefetch_offline_icon_tint_color">@color/modern_grey_500</color>
 
+    <!-- Offline indicator v2 colors -->
+    <color name="offline_indicator_offline_color">@android:color/black</color>
+    <color name="offline_indicator_back_online_color">@color/default_bg_color_blue</color>
+
     <!-- Other colors -->
     <color name="media_viewer_bg">#000000</color>
     <color name="image_viewer_bg">#0E0E0E</color>

chrome/android/java/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorCoordinator.java

@@ -9,6 +9,10 @@ import android.graphics.drawable.Drawable;
 import android.view.View;
 import android.view.ViewStub;
 
+import androidx.annotation.ColorInt;
+import androidx.annotation.NonNull;
+
+import org.chromium.base.supplier.Supplier;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.fullscreen.ChromeFullscreenManager;
 import org.chromium.components.browser_ui.widget.ViewResourceFrameLayout;
@@ -16,8 +20,6 @@ import org.chromium.ui.modelutil.PropertyModel;
 import org.chromium.ui.modelutil.PropertyModelChangeProcessor;
 import org.chromium.ui.resources.ResourceManager;
 
-import java.util.HashSet;
-
 /**
  * The coordinator for a status indicator that is positioned below the status bar and is persistent.
  * Typically used to relay status, e.g. indicate user is offline.
@@ -29,95 +31,119 @@ public class StatusIndicatorCoordinator {
          * Called when the height of the status indicator changes.
          * @param newHeight The new height in pixels.
          */
-        void onStatusIndicatorHeightChanged(int newHeight);
+        default void onStatusIndicatorHeightChanged(int newHeight) {}
+
+        /**
+         * Called when the background color of the status indicator changes.
+         * @param newColor The new color as {@link ColorInt}.
+         */
+        default void onStatusIndicatorColorChanged(@ColorInt int newColor) {}
     }
 
     private StatusIndicatorMediator mMediator;
-    private PropertyModel mModel;
-    private View mView;
     private StatusIndicatorSceneLayer mSceneLayer;
-    private HashSet<StatusIndicatorObserver> mObservers = new HashSet<>();
+    private boolean mIsShowing;
+    private Runnable mRemoveOnLayoutChangeListener;
 
+    /**
+     * Constructs the status indicator.
+     * @param activity The {@link Activity} to find and inflate the status indicator view.
+     * @param resourceManager The {@link ResourceManager} for the status indicator's cc layer.
+     * @param fullscreenManager The {@link ChromeFullscreenManager} to listen to for the changes in
+     *                          controls offsets.
+     * @param statusBarColorWithoutStatusIndicatorSupplier A supplier that will get the status bar
+     *                                                     color without taking the status indicator
+     *                                                     into account.
+     */
     public StatusIndicatorCoordinator(Activity activity, ResourceManager resourceManager,
-            ChromeFullscreenManager fullscreenManager) {
+            ChromeFullscreenManager fullscreenManager,
+            Supplier<Integer> statusBarColorWithoutStatusIndicatorSupplier) {
         // TODO(crbug.com/1005843): Create this view lazily if/when we need it. This is a task for
-        // when we have the public API figured out.
+        // when we have the public API figured out. First, we should avoid inflating the view here
+        // in case it's never used.
         final ViewStub stub = activity.findViewById(R.id.status_indicator_stub);
         ViewResourceFrameLayout root = (ViewResourceFrameLayout) stub.inflate();
-        mView = root;
         mSceneLayer = new StatusIndicatorSceneLayer(root, () -> fullscreenManager);
-        mModel = new PropertyModel.Builder(StatusIndicatorProperties.ALL_KEYS)
+        PropertyModel model =
+                new PropertyModel.Builder(StatusIndicatorProperties.ALL_KEYS)
                         .with(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY, View.GONE)
                         .with(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE, false)
                         .build();
-        PropertyModelChangeProcessor.create(mModel,
+        PropertyModelChangeProcessor.create(model,
                 new StatusIndicatorViewBinder.ViewHolder(root, mSceneLayer),
                 StatusIndicatorViewBinder::bind);
-        mMediator = new StatusIndicatorMediator(mModel, fullscreenManager);
-        mObservers.add(mMediator);
+        mMediator = new StatusIndicatorMediator(
+                model, fullscreenManager, statusBarColorWithoutStatusIndicatorSupplier);
         resourceManager.getDynamicResourceLoader().registerResource(
                 root.getId(), root.getResourceAdapter());
+        root.addOnLayoutChangeListener(mMediator);
+        mRemoveOnLayoutChangeListener = () -> root.removeOnLayoutChangeListener(mMediator);
+    }
+
+    public void destroy() {
+        mRemoveOnLayoutChangeListener.run();
     }
 
+    // TODO(sinansahin): Destroy the view when not needed.
+
     /**
-     * Set the {@link String} the status indicator should display.
-     * @param statusText The string.
+     * Show the status indicator with the initial properties with animations.
+     *
+     * @param statusText The status string that will be visible on the status indicator.
+     * @param statusIcon The icon {@link Drawable} that will appear next to the status text.
+     * @param backgroundColor The background color for the status indicator and the status bar.
+     * @param textColor Status text color.
+     * @param iconTint Status icon tint.
      */
-    public void setStatusText(String statusText) {
-        mModel.set(StatusIndicatorProperties.STATUS_TEXT, statusText);
+    public void show(@NonNull String statusText, Drawable statusIcon, @ColorInt int backgroundColor,
+            @ColorInt int textColor, @ColorInt int iconTint) {
+        // TODO(sinansahin): Once we've moved the connectivity detection code to a separate class,
+        // we should make sure #show(), #updateContent(), and #hide() are called correctly there,
+        // e.g. show shouldn't be called if we're already showing. Then, we can turn these if checks
+        // into asserts.
+        if (mIsShowing) return;
+        mIsShowing = true;
+
+        mMediator.animateShow(statusText, statusIcon, backgroundColor, textColor, iconTint);
     }
 
     /**
-     * Set the {@link Drawable} the status indicator should display next to the status text.
-     * @param statusIcon The icon drawable.
+     * Update the status indicator text, icon and colors with animations. All of the properties will
+     * be animated even if only one property changes. Support to animate a single property may be
+     * added in the future if needed.
+     *
+     * @param statusText The string that will replace the current text.
+     * @param statusIcon The icon that will replace the current icon.
+     * @param backgroundColor The color that will replace the status indicator background color.
+     * @param textColor The new text color to fit the new background.
+     * @param iconTint The new icon tint to fit the background.
+     * @param animationCompleteCallback The callback that will be run once the animations end.
      */
-    public void setStatusIcon(Drawable statusIcon) {
-        mModel.set(StatusIndicatorProperties.STATUS_ICON, statusIcon);
-    }
+    public void updateContent(@NonNull String statusText, Drawable statusIcon,
+            @ColorInt int backgroundColor, @ColorInt int textColor, @ColorInt int iconTint,
+            Runnable animationCompleteCallback) {
+        if (!mIsShowing) return;
 
-    // TODO(sinansahin): With animation.
-    // TODO(sinansahin): Destroy the view when not needed.
-    /** Show the status indicator. */
-    public void show() {
-        mModel.set(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY, View.INVISIBLE);
-        // TODO(crbug.com/1005843): We will need a measure pass before we can get the real height of
-        // this view. We should keep this in mind when inflating the view lazily.
-        mView.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
-            @Override
-            public void onLayoutChange(View v, int left, int top, int right, int bottom,
-                    int oldLeft, int oldTop, int oldRight, int oldBottom) {
-                final int height = v.getHeight();
-                for (StatusIndicatorObserver observer : mObservers) {
-                    observer.onStatusIndicatorHeightChanged(height);
-                }
-                mView.removeOnLayoutChangeListener(this);
-            }
-        });
+        mMediator.animateUpdate(statusText, statusIcon, backgroundColor, textColor, iconTint,
+                animationCompleteCallback);
     }
 
-    // TODO(sinansahin): With animation as well.
-    /** Hide the status indicator. */
+    /**
+     * Hide the status indicator with animations.
+     */
     public void hide() {
-        mModel.set(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY, View.GONE);
-        for (StatusIndicatorObserver observer : mObservers) {
-            observer.onStatusIndicatorHeightChanged(0);
-        }
+        if (!mIsShowing) return;
+        mIsShowing = false;
+
+        mMediator.animateHide();
     }
 
     public void addObserver(StatusIndicatorObserver observer) {
-        mObservers.add(observer);
+        mMediator.addObserver(observer);
     }
 
     public void removeObserver(StatusIndicatorObserver observer) {
-        mObservers.remove(observer);
-    }
-
-    /**
-     * Is the status indicator currently visible.
-     * @return True if visible.
-     */
-    public boolean isVisible() {
-        return mModel.get(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE);
+        mMediator.removeObserver(observer);
     }
 
     /**

chrome/android/java/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorProperties.java

@@ -26,6 +26,19 @@ class StatusIndicatorProperties {
     static final PropertyModel.WritableBooleanPropertyKey COMPOSITED_VIEW_VISIBLE =
             new PropertyModel.WritableBooleanPropertyKey();
 
-    static final PropertyKey[] ALL_KEYS = new PropertyKey[] {
-            STATUS_TEXT, STATUS_ICON, ANDROID_VIEW_VISIBILITY, COMPOSITED_VIEW_VISIBLE};
+    static final PropertyModel.WritableIntPropertyKey BACKGROUND_COLOR =
+            new PropertyModel.WritableIntPropertyKey();
+
+    static final PropertyModel.WritableFloatPropertyKey TEXT_ALPHA =
+            new PropertyModel.WritableFloatPropertyKey();
+
+    static final PropertyModel.WritableIntPropertyKey TEXT_COLOR =
+            new PropertyModel.WritableIntPropertyKey();
+
+    static final PropertyModel.WritableIntPropertyKey ICON_TINT =
+            new PropertyModel.WritableIntPropertyKey();
+
+    static final PropertyKey[] ALL_KEYS =
+            new PropertyKey[] {STATUS_TEXT, STATUS_ICON, ANDROID_VIEW_VISIBILITY,
+                    COMPOSITED_VIEW_VISIBLE, BACKGROUND_COLOR, TEXT_ALPHA, TEXT_COLOR, ICON_TINT};
 }

chrome/android/java/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorViewBinder.java

@@ -4,10 +4,13 @@
 
 package org.chromium.chrome.browser.status_indicator;
 
+import android.content.res.ColorStateList;
+import android.view.View;
 import android.widget.TextView;
 
 import org.chromium.chrome.R;
 import org.chromium.components.browser_ui.widget.ViewResourceFrameLayout;
+import org.chromium.components.browser_ui.widget.text.TextViewWithCompoundDrawables;
 import org.chromium.ui.modelutil.PropertyKey;
 import org.chromium.ui.modelutil.PropertyModel;
 
@@ -47,6 +50,21 @@ class StatusIndicatorViewBinder {
         } else if (StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY == propertyKey) {
             view.javaViewRoot.setVisibility(
                     model.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
+        } else if (StatusIndicatorProperties.BACKGROUND_COLOR == propertyKey) {
+            view.javaViewRoot.setBackgroundColor(
+                    model.get(StatusIndicatorProperties.BACKGROUND_COLOR));
+        } else if (StatusIndicatorProperties.TEXT_ALPHA == propertyKey) {
+            final View text = view.javaViewRoot.findViewById(R.id.status_text);
+            text.setAlpha(model.get(StatusIndicatorProperties.TEXT_ALPHA));
+        } else if (StatusIndicatorProperties.TEXT_COLOR == propertyKey) {
+            final TextView text = view.javaViewRoot.findViewById(R.id.status_text);
+            text.setTextColor(model.get(StatusIndicatorProperties.TEXT_COLOR));
+        } else if (StatusIndicatorProperties.ICON_TINT == propertyKey) {
+            final TextViewWithCompoundDrawables text =
+                    view.javaViewRoot.findViewById(R.id.status_text);
+            final ColorStateList tint =
+                    ColorStateList.valueOf(model.get(StatusIndicatorProperties.ICON_TINT));
+            text.setDrawableTintColor(tint);
         } else {
             assert false : "Unhandled property detected in StatusIndicatorViewBinder!";
         }

chrome/android/java/src/org/chromium/chrome/browser/tabbed_mode/TabbedRootUiCoordinator.java

@@ -4,13 +4,17 @@
 
 package org.chromium.chrome.browser.tabbed_mode;
 
+import android.os.Handler;
+
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 
+import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.Callback;
 import org.chromium.base.TraceEvent;
 import org.chromium.base.supplier.ObservableSupplier;
 import org.chromium.base.task.PostTask;
+import org.chromium.chrome.R;
 import org.chromium.chrome.browser.AppHooks;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.compositor.layouts.LayoutManager;
@@ -48,6 +52,8 @@ import org.chromium.ui.base.WindowAndroid;
 public class TabbedRootUiCoordinator extends RootUiCoordinator implements NativeInitObserver {
     private static boolean sEnableStatusIndicatorForTests;
 
+    private static final int STATUS_INDICATOR_WAIT_BEFORE_HIDE_DURATION_MS = 2000;
+
     private @Nullable ImmersiveModeManager mImmersiveModeManager;
     private TabbedSystemUiCoordinator mSystemUiCoordinator;
     private @Nullable EmptyBackgroundViewWrapper mEmptyBackgroundViewWrapper;
@@ -82,6 +88,8 @@ public class TabbedRootUiCoordinator extends RootUiCoordinator implements Native
 
         if (mStatusIndicatorCoordinator != null) {
             mStatusIndicatorCoordinator.removeObserver(mStatusIndicatorObserver);
+            mStatusIndicatorCoordinator.removeObserver(mActivity.getStatusBarColorController());
+            mStatusIndicatorCoordinator.destroy();
         }
 
         if (mToolbarButtonInProductHelpController != null) {
@@ -174,17 +182,23 @@ public class TabbedRootUiCoordinator extends RootUiCoordinator implements Native
 
         final ChromeFullscreenManager fullscreenManager = mActivity.getFullscreenManager();
         mStatusIndicatorCoordinator = new StatusIndicatorCoordinator(mActivity,
-                mActivity.getCompositorViewHolder().getResourceManager(), fullscreenManager);
+                mActivity.getCompositorViewHolder().getResourceManager(), fullscreenManager,
+                mActivity.getStatusBarColorController()::getStatusBarColorWithoutStatusIndicator);
         layoutManager.setStatusIndicatorSceneOverlay(mStatusIndicatorCoordinator.getSceneLayer());
-        mStatusIndicatorObserver = (indicatorHeight -> {
+        mStatusIndicatorObserver = new StatusIndicatorCoordinator.StatusIndicatorObserver() {
+            @Override
+            public void onStatusIndicatorHeightChanged(int indicatorHeight) {
                 final int resourceId = mActivity.getControlContainerHeightResource();
                 final int topControlsNewHeight =
-                    mActivity.getResources().getDimensionPixelSize(resourceId) + indicatorHeight;
+                        mActivity.getResources().getDimensionPixelSize(resourceId)
+                        + indicatorHeight;
                 fullscreenManager.setAnimateBrowserControlsHeightChanges(true);
                 fullscreenManager.setTopControlsHeight(topControlsNewHeight, indicatorHeight);
                 fullscreenManager.setAnimateBrowserControlsHeightChanges(false);
-        });
+            }
+        };
         mStatusIndicatorCoordinator.addObserver(mStatusIndicatorObserver);
+        mStatusIndicatorCoordinator.addObserver(mActivity.getStatusBarColorController());
 
         // Don't listen to the ConnectivityDetector if the feature is disabled.
         if (!ChromeFeatureList.isEnabled(ChromeFeatureList.OFFLINE_INDICATOR_V2)) {
@@ -194,9 +208,30 @@ public class TabbedRootUiCoordinator extends RootUiCoordinator implements Native
         mConnectivityDetector = new ConnectivityDetector((state) -> {
             final boolean offline = state != ConnectivityDetector.ConnectionState.VALIDATED;
             if (offline) {
-                mStatusIndicatorCoordinator.show();
+                final int backgroundColor = ApiCompatibilityUtils.getColor(
+                        mActivity.getResources(), R.color.offline_indicator_offline_color);
+                final int textColor = ApiCompatibilityUtils.getColor(
+                        mActivity.getResources(), R.color.default_text_color_light);
+                final int iconTint = ApiCompatibilityUtils.getColor(
+                        mActivity.getResources(), R.color.default_icon_color_light);
+                mStatusIndicatorCoordinator.show(
+                        mActivity.getString(R.string.offline_indicator_v2_offline_text), null,
+                        backgroundColor, textColor, iconTint);
             } else {
-                mStatusIndicatorCoordinator.hide();
+                final int backgroundColor = ApiCompatibilityUtils.getColor(
+                        mActivity.getResources(), R.color.offline_indicator_back_online_color);
+                final int textColor = ApiCompatibilityUtils.getColor(
+                        mActivity.getResources(), R.color.default_text_color_inverse);
+                final int iconTint = ApiCompatibilityUtils.getColor(
+                        mActivity.getResources(), R.color.default_icon_color_inverse);
+                Runnable hide = () -> {
+                    final Handler handler = new Handler();
+                    handler.postDelayed(() -> mStatusIndicatorCoordinator.hide(),
+                            STATUS_INDICATOR_WAIT_BEFORE_HIDE_DURATION_MS);
+                };
+                mStatusIndicatorCoordinator.updateContent(
+                        mActivity.getString(R.string.offline_indicator_v2_back_online_text), null,
+                        backgroundColor, textColor, iconTint, hide);
             }
         });
     }

chrome/android/java/src/org/chromium/chrome/browser/ui/system/StatusBarColorController.java

@@ -21,6 +21,7 @@ import org.chromium.chrome.browser.compositor.layouts.EmptyOverviewModeObserver;
 import org.chromium.chrome.browser.compositor.layouts.OverviewModeBehavior;
 import org.chromium.chrome.browser.lifecycle.Destroyable;
 import org.chromium.chrome.browser.ntp.NewTabPage;
+import org.chromium.chrome.browser.status_indicator.StatusIndicatorCoordinator;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabSelectionType;
 import org.chromium.chrome.browser.tab.TabThemeColorHelper;
@@ -39,9 +40,10 @@ import org.chromium.ui.util.ColorUtils;
  * Maintains the status bar color for a {@link ChromeActivity}.
  */
 public class StatusBarColorController
-        implements Destroyable, TopToolbarCoordinator.UrlExpansionObserver {
-    public static @ColorInt int UNDEFINED_STATUS_BAR_COLOR = Color.TRANSPARENT;
-    public static @ColorInt int DEFAULT_STATUS_BAR_COLOR = Color.argb(0x01, 0, 0, 0);
+        implements Destroyable, TopToolbarCoordinator.UrlExpansionObserver,
+                   StatusIndicatorCoordinator.StatusIndicatorObserver {
+    public static final @ColorInt int UNDEFINED_STATUS_BAR_COLOR = Color.TRANSPARENT;
+    public static final @ColorInt int DEFAULT_STATUS_BAR_COLOR = Color.argb(0x01, 0, 0, 0);
 
     /**
      * Provides the base status bar color.
@@ -86,6 +88,8 @@ public class StatusBarColorController
 
     private float mToolbarUrlExpansionPercentage;
     private boolean mShouldUpdateStatusBarColorForNTP;
+    private @ColorInt int mStatusIndicatorColor;
+    private @ColorInt int mStatusBarColorWithoutStatusIndicator;
 
     /**
      * @param chromeActivity The {@link ChromeActivity} that this class is attached to.
@@ -106,6 +110,8 @@ public class StatusBarColorController
         mStandardDefaultThemeColor = ChromeColors.getDefaultThemeColor(resources, false);
         mIncognitoDefaultThemeColor = ChromeColors.getDefaultThemeColor(resources, true);
 
+        mStatusIndicatorColor = UNDEFINED_STATUS_BAR_COLOR;
+
         mStatusBarColorTabObserver = new ActivityTabProvider.ActivityTabTabObserver(
                 chromeActivity.getActivityTabProvider()) {
             @Override
@@ -203,6 +209,14 @@ public class StatusBarColorController
         if (mShouldUpdateStatusBarColorForNTP) updateStatusBarColor();
     }
 
+    // StatusIndicatorCoordinator.StatusIndicatorObserver implementation.
+
+    @Override
+    public void onStatusIndicatorColorChanged(@ColorInt int newColor) {
+        mStatusIndicatorColor = newColor;
+        updateStatusBarColor();
+    }
+
     /**
      * @param tabModelSelector The {@link TabModelSelector} to check whether incognito model is
      *                         selected.
@@ -229,7 +243,49 @@ public class StatusBarColorController
             statusBarColor =
                     mIsIncognito ? mIncognitoDefaultThemeColor : mStandardDefaultThemeColor;
         }
-        setStatusBarColor(statusBarColor, isDefaultThemeColor);
+
+        mStatusBarColorWithoutStatusIndicator = statusBarColor;
+
+        final boolean statusIndicatorColorSet = mStatusIndicatorColor != UNDEFINED_STATUS_BAR_COLOR;
+        if (statusIndicatorColorSet) {
+            statusBarColor = mStatusIndicatorColor;
+        }
+
+        // If the API level is not at least M, the status bar icons will be always light. So, we
+        // should darken the status bar color.
+        boolean shouldDarkenStatusBar = Build.VERSION.SDK_INT < Build.VERSION_CODES.M;
+
+        // Calculate the color without the status indicator.
+        if (shouldDarkenStatusBar && isDefaultThemeColor) {
+            mStatusBarColorWithoutStatusIndicator = Color.BLACK;
+        } else if (shouldDarkenStatusBar) {
+            mStatusBarColorWithoutStatusIndicator =
+                    ColorUtils.getDarkenedColorForStatusBar(mStatusBarColorWithoutStatusIndicator);
+        }
+
+        // If we need to darken the color and the theme color is default, the status bar color
+        // should be black. However, we should use the status indicator color if it's set.
+        if (shouldDarkenStatusBar && isDefaultThemeColor && !statusIndicatorColorSet) {
+            statusBarColor = Color.BLACK;
+        } else if (shouldDarkenStatusBar) {
+            statusBarColor = ColorUtils.getDarkenedColorForStatusBar(statusBarColor);
+        } else {
+            // If we aren't darkening the color, we should apply scrim if it's showing.
+            statusBarColor = applyCurrentScrimToColor(statusBarColor);
+        }
+
+        setStatusBarColor(statusBarColor);
+    }
+
+    // TODO(sinansahin): Confirm pre-M expectations with UX and update as needed.
+    /**
+     * @return The status bar color without the status indicator's color taken into consideration.
+     *         Color returned from this method includes darkening if the OS version doesn't support
+     *         light status bar icons (pre-M). However, scrimming isn't included since it's managed
+     *         completely by this class.
+     */
+    public @ColorInt int getStatusBarColorWithoutStatusIndicator() {
+        return mStatusBarColorWithoutStatusIndicator;
     }
 
     private @ColorInt int calculateBaseStatusBarColor() {
@@ -273,36 +329,35 @@ public class StatusBarColorController
     }
 
     /**
-     * Set device status bar to a given color.
+     * Set device status bar to a given color. Also, set the status bar icons to a dark color if
+     * needed.
      * @param color The color that the status bar should be set to.
-     * @param isDefaultThemeColor Whether {@code color} is the default theme color.
      */
-    private void setStatusBarColor(int color, boolean isDefaultThemeColor) {
+    private void setStatusBarColor(@ColorInt int color) {
         if (UiUtils.isSystemUiThemingDisabled()) return;
 
-        int statusBarColor = color;
-        boolean supportsDarkStatusIcons = Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
-        View root = mWindow.getDecorView().getRootView();
-        Resources resources = root.getResources();
-        if (supportsDarkStatusIcons) {
+        final View root = mWindow.getDecorView().getRootView();
+        boolean needsDarkStatusBarIcons = !ColorUtils.shouldUseLightForegroundOnBackground(color);
+        ApiCompatibilityUtils.setStatusBarIconColor(root, needsDarkStatusBarIcons);
+        ApiCompatibilityUtils.setStatusBarColor(mWindow, color);
+    }
+
+    /**
+     * Get the scrim applied color if the scrim is showing. Otherwise, return the original color.
+     * @param color Color to maybe apply scrim to.
+     * @return The resulting color.
+     */
+    private @ColorInt int applyCurrentScrimToColor(@ColorInt int color) {
         if (mScrimColor == 0) {
+            final View root = mWindow.getDecorView().getRootView();
+            final Resources resources = root.getResources();
             mScrimColor = ApiCompatibilityUtils.getColor(resources, R.color.black_alpha_65);
         }
         // Apply a color overlay if the scrim is showing.
         float scrimColorAlpha = (mScrimColor >>> 24) / 255f;
         int scrimColorOpaque = mScrimColor & 0xFF000000;
-            statusBarColor = ColorUtils.getColorWithOverlay(
-                    statusBarColor, scrimColorOpaque, mStatusBarScrimFraction * scrimColorAlpha);
-
-            boolean needsDarkStatusBarIcons =
-                    !ColorUtils.shouldUseLightForegroundOnBackground(statusBarColor);
-            ApiCompatibilityUtils.setStatusBarIconColor(root, needsDarkStatusBarIcons);
-        } else {
-            statusBarColor = isDefaultThemeColor ? Color.BLACK
-                                                 : ColorUtils.getDarkenedColorForStatusBar(color);
-        }
-
-        ApiCompatibilityUtils.setStatusBarColor(mWindow, statusBarColor);
+        return ColorUtils.getColorWithOverlay(
+                color, scrimColorOpaque, mStatusBarScrimFraction * scrimColorAlpha);
     }
 
     /**

chrome/android/javatests/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorTest.java

@@ -4,9 +4,8 @@
 
 package org.chromium.chrome.browser.status_indicator;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.MatcherAssert.assertThat;
-
+import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.MediumTest;
 import android.view.View;
@@ -15,6 +14,7 @@ import android.view.ViewGroup;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,6 +32,7 @@ import org.chromium.chrome.test.util.browser.Features;
 import org.chromium.content_public.browser.test.util.Criteria;
 import org.chromium.content_public.browser.test.util.CriteriaHelper;
 import org.chromium.content_public.browser.test.util.TestThreadUtils;
+import org.chromium.ui.test.util.DisableAnimationsTestRule;
 import org.chromium.ui.test.util.UiRestriction;
 
 /**
@@ -46,6 +47,11 @@ import org.chromium.ui.test.util.UiRestriction;
 @Restriction({UiRestriction.RESTRICTION_TYPE_PHONE})
 public class StatusIndicatorTest {
     // clang-format on
+
+    @ClassRule
+    public static DisableAnimationsTestRule mDisableAnimationsTestRule =
+            new DisableAnimationsTestRule();
+
     @Rule
     public ChromeTabbedActivityTestRule mActivityTestRule = new ChromeTabbedActivityTestRule();
 
@@ -82,15 +88,15 @@ public class StatusIndicatorTest {
                 mActivityTestRule.getActivity().getFullscreenManager();
         InstrumentationRegistry.getInstrumentation().waitForIdleSync();
 
-        assertThat("Wrong initial Android view visibility.",
-                mStatusIndicatorContainer.getVisibility(), equalTo(View.GONE));
+        Assert.assertEquals("Wrong initial Android view visibility.", View.GONE,
+                mStatusIndicatorContainer.getVisibility());
         Assert.assertFalse("Wrong initial composited view visibility.",
                 mStatusIndicatorSceneLayer.isSceneOverlayTreeShowing());
-        assertThat("Wrong initial control container top margin.",
-                mControlContainerLayoutParams.topMargin, equalTo(0));
-
-        TestThreadUtils.runOnUiThreadBlocking(mStatusIndicatorCoordinator::show);
+        Assert.assertEquals("Wrong initial control container top margin.", 0,
+                mControlContainerLayoutParams.topMargin);
 
+        TestThreadUtils.runOnUiThreadBlocking(() -> mStatusIndicatorCoordinator.show(
+        "Status", null, Color.BLACK, Color.WHITE, Color.WHITE));
         InstrumentationRegistry.getInstrumentation().waitForIdleSync();
 
         // TODO(sinansahin): Investigate setting the duration for the browser controls animations to
@@ -101,19 +107,32 @@ public class StatusIndicatorTest {
                 fullscreenManager::getTopControlsMinHeightOffset));
 
         // Now, the Android view should be visible.
-        assertThat("Wrong Android view visibility.", mStatusIndicatorContainer.getVisibility(),
-                equalTo(View.VISIBLE));
+        Assert.assertEquals("Wrong Android view visibility.", View.VISIBLE,
+                mStatusIndicatorContainer.getVisibility());
+        Assert.assertEquals("Wrong background color.", Color.BLACK,
+                ((ColorDrawable) mStatusIndicatorContainer.getBackground()).getColor());
 
-        TestThreadUtils.runOnUiThreadBlocking(mStatusIndicatorCoordinator::hide);
+        TestThreadUtils.runOnUiThreadBlocking(() -> mStatusIndicatorCoordinator.updateContent(
+                "Exit status", null, Color.WHITE, Color.BLACK, Color.BLACK, () -> {}));
+        InstrumentationRegistry.getInstrumentation().waitForIdleSync();
 
-        // The Android view visibility should be {@link View.GONE} after #hide().
-        assertThat("Wrong Android view visibility.", mStatusIndicatorContainer.getVisibility(),
-                equalTo(View.GONE));
+        // The Android view should be visible.
+        Assert.assertEquals("Wrong Android view visibility.", View.VISIBLE,
+                mStatusIndicatorContainer.getVisibility());
+        Assert.assertEquals("Wrong background color.", Color.WHITE,
+                ((ColorDrawable) mStatusIndicatorContainer.getBackground()).getColor());
+
+        TestThreadUtils.runOnUiThreadBlocking(mStatusIndicatorCoordinator::hide);
+        InstrumentationRegistry.getInstrumentation().waitForIdleSync();
 
         // Wait until the status indicator finishes animating, or becomes fully hidden.
         CriteriaHelper.pollUiThread(
                 Criteria.equals(0, fullscreenManager::getTopControlsMinHeightOffset));
 
+        // The Android view visibility should be {@link View.GONE} after #hide().
+        Assert.assertEquals("Wrong Android view visibility.", View.GONE,
+                mStatusIndicatorContainer.getVisibility());
+
         Assert.assertFalse("Composited view shouldn't be visible.",
                 mStatusIndicatorSceneLayer.isSceneOverlayTreeShowing());
     }

chrome/android/javatests/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorViewBinderTest.java

@@ -4,18 +4,25 @@
 
 package org.chromium.chrome.browser.status_indicator;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.MatcherAssert.assertThat;
+import static android.graphics.PorterDuff.Mode.SRC_IN;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import android.graphics.Color;
+import android.graphics.PorterDuffColorFilter;
+import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.os.Build;
 import android.support.test.annotation.UiThreadTest;
 import android.support.test.filters.SmallTest;
 import android.support.v4.content.res.ResourcesCompat;
 import android.text.TextUtils;
 import android.view.View;
-import android.widget.TextView;
 
-import org.junit.Assert;
+import org.chromium.base.MathUtils;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -23,6 +30,7 @@ import org.junit.runner.RunWith;
 import org.chromium.chrome.R;
 import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
 import org.chromium.components.browser_ui.widget.ViewResourceFrameLayout;
+import org.chromium.components.browser_ui.widget.text.TextViewWithCompoundDrawables;
 import org.chromium.content_public.browser.test.util.TestThreadUtils;
 import org.chromium.ui.modelutil.PropertyModel;
 import org.chromium.ui.modelutil.PropertyModelChangeProcessor;
@@ -37,7 +45,7 @@ public class StatusIndicatorViewBinderTest extends DummyUiActivityTestCase {
     private static final String STATUS_TEXT = "Offline";
 
     private ViewResourceFrameLayout mContainer;
-    private TextView mStatusTextView;
+    private TextViewWithCompoundDrawables mStatusTextView;
     private MockStatusIndicatorSceneLayer mSceneLayer;
 
     private PropertyModel mModel;
@@ -78,11 +86,9 @@ public class StatusIndicatorViewBinderTest extends DummyUiActivityTestCase {
     @SmallTest
     @UiThreadTest
     public void testTextView() {
-        Assert.assertTrue(
-                "Wrong initial status text.", TextUtils.isEmpty(mStatusTextView.getText()));
-        Assert.assertNull(
-                "Wrong initial status icon.", mStatusTextView.getCompoundDrawablesRelative()[0]);
-        Assert.assertTrue(
+        assertTrue("Wrong initial status text.", TextUtils.isEmpty(mStatusTextView.getText()));
+        assertNull("Wrong initial status icon.", mStatusTextView.getCompoundDrawablesRelative()[0]);
+        assertTrue(
                 "Rest of the compound drawables are not null.", areRestOfCompoundDrawablesNull());
 
         Drawable drawable = ResourcesCompat.getDrawable(getActivity().getResources(),
@@ -93,10 +99,10 @@ public class StatusIndicatorViewBinderTest extends DummyUiActivityTestCase {
             mModel.set(StatusIndicatorProperties.STATUS_ICON, drawable);
         });
 
-        assertThat("Wrong status text.", mStatusTextView.getText(), equalTo(STATUS_TEXT));
-        assertThat("Wrong status icon.", mStatusTextView.getCompoundDrawablesRelative()[0],
-                equalTo(drawable));
-        Assert.assertTrue(
+        assertEquals("Wrong status text.", STATUS_TEXT, mStatusTextView.getText());
+        assertEquals(
+                "Wrong status icon.", drawable, mStatusTextView.getCompoundDrawablesRelative()[0]);
+        assertTrue(
                 "Rest of the compound drawables are not null.", areRestOfCompoundDrawablesNull());
     }
 
@@ -104,9 +110,9 @@ public class StatusIndicatorViewBinderTest extends DummyUiActivityTestCase {
     @SmallTest
     @UiThreadTest
     public void testVisibility() {
-        assertThat("Wrong initial Android view visibility.", mContainer.getVisibility(),
-                equalTo(View.GONE));
-        Assert.assertFalse("Wrong initial composited view visibility.",
+        assertEquals(
+                "Wrong initial Android view visibility.", View.GONE, mContainer.getVisibility());
+        assertFalse("Wrong initial composited view visibility.",
                 mSceneLayer.isSceneOverlayTreeShowing());
 
         TestThreadUtils.runOnUiThreadBlocking(() -> {
@@ -114,18 +120,73 @@ public class StatusIndicatorViewBinderTest extends DummyUiActivityTestCase {
             mModel.set(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE, true);
         });
 
-        assertThat(
-                "Android view is not visible.", mContainer.getVisibility(), equalTo(View.VISIBLE));
-        Assert.assertTrue(
-                "Composited view is not visible.", mSceneLayer.isSceneOverlayTreeShowing());
+        assertEquals("Android view is not visible.", View.VISIBLE, mContainer.getVisibility());
+        assertTrue("Composited view is not visible.", mSceneLayer.isSceneOverlayTreeShowing());
 
         TestThreadUtils.runOnUiThreadBlocking(() -> {
             mModel.set(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY, View.GONE);
             mModel.set(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE, false);
         });
 
-        assertThat("Android view is not gone.", mContainer.getVisibility(), equalTo(View.GONE));
-        Assert.assertFalse("Composited view is visible.", mSceneLayer.isSceneOverlayTreeShowing());
+        assertEquals("Android view is not gone.", View.GONE, mContainer.getVisibility());
+        assertFalse("Composited view is visible.", mSceneLayer.isSceneOverlayTreeShowing());
+    }
+
+    @Test
+    @SmallTest
+    @UiThreadTest
+    public void testColorAndTint() {
+        int bgColor = getActivity().getResources().getColor(R.color.modern_primary_color);
+        int textColor = getActivity().getResources().getColor(R.color.default_text_color);
+        assertEquals("Wrong initial background color.", bgColor,
+                ((ColorDrawable) mContainer.getBackground()).getColor());
+        assertEquals("Wrong initial text color", textColor, mStatusTextView.getCurrentTextColor());
+
+        Drawable drawable = ResourcesCompat.getDrawable(getActivity().getResources(),
+                R.drawable.ic_error_white_24dp_filled, getActivity().getTheme());
+
+        TestThreadUtils.runOnUiThreadBlocking(() -> {
+            mModel.set(StatusIndicatorProperties.STATUS_ICON, drawable);
+            mModel.set(StatusIndicatorProperties.BACKGROUND_COLOR, Color.BLUE);
+            mModel.set(StatusIndicatorProperties.TEXT_COLOR, Color.RED);
+            mModel.set(StatusIndicatorProperties.ICON_TINT, Color.GREEN);
+        });
+
+        assertEquals("Wrong background color.", Color.BLUE,
+                ((ColorDrawable) mContainer.getBackground()).getColor());
+        assertEquals("Wrong text color.", Color.RED, mStatusTextView.getCurrentTextColor());
+
+        // There is no way to get the color filter below L. We could technically modify
+        // TextViewWithCompoundDrawables to cache it, but it's not worth the effort. Once the min
+        // apk is L, we won't be using color filters anyway.
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            assertEquals("Wrong compound drawables tint",
+                    new PorterDuffColorFilter(Color.GREEN, SRC_IN),
+                    mStatusTextView.getCompoundDrawablesRelative()[0].getColorFilter());
+        }
+    }
+
+    @Test
+    @SmallTest
+    @UiThreadTest
+    public void testTextAlpha() {
+        assertEquals(
+                "Wrong initial text alpha.", 1.f, mStatusTextView.getAlpha(), MathUtils.EPSILON);
+
+        TestThreadUtils.runOnUiThreadBlocking(
+                () -> mModel.set(StatusIndicatorProperties.TEXT_ALPHA, .5f));
+
+        assertEquals("Wrong text alpha.", .5f, mStatusTextView.getAlpha(), MathUtils.EPSILON);
+
+        TestThreadUtils.runOnUiThreadBlocking(
+                () -> mModel.set(StatusIndicatorProperties.TEXT_ALPHA, .0f));
+
+        assertEquals("Wrong text alpha.", 0.f, mStatusTextView.getAlpha(), MathUtils.EPSILON);
+
+        TestThreadUtils.runOnUiThreadBlocking(
+                () -> mModel.set(StatusIndicatorProperties.TEXT_ALPHA, 1.f));
+
+        assertEquals("Wrong text alpha.", 1.f, mStatusTextView.getAlpha(), MathUtils.EPSILON);
     }
 
     private boolean areRestOfCompoundDrawablesNull() {

chrome/android/javatests/src/org/chromium/chrome/browser/ui/system/StatusBarColorControllerTest.java

@@ -9,16 +9,22 @@ import android.graphics.Color;
 import android.os.Build;
 import android.support.test.filters.LargeTest;
 
+import androidx.annotation.ColorInt;
+
 import org.junit.After;
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.base.supplier.Supplier;
 import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.MinAndroidSdkLevel;
 import org.chromium.base.test.util.Restriction;
+import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.ChromeTabbedActivity;
 import org.chromium.chrome.browser.flags.CachedFeatureFlags;
@@ -31,6 +37,7 @@ import org.chromium.chrome.test.util.browser.ThemeTestUtils;
 import org.chromium.components.browser_ui.styles.ChromeColors;
 import org.chromium.content_public.browser.test.util.TestThreadUtils;
 import org.chromium.ui.test.util.UiRestriction;
+import org.chromium.ui.util.ColorUtils;
 
 /**
  * {@link StatusBarColorController} tests.
@@ -42,10 +49,14 @@ public class StatusBarColorControllerTest {
     @Rule
     public ChromeTabbedActivityTestRule mActivityTestRule = new ChromeTabbedActivityTestRule();
 
+    private @ColorInt int mScrimColor;
+
     @Before
     public void setUp() {
         CachedFeatureFlags.setForTesting(ChromeFeatureList.TAB_GRID_LAYOUT_ANDROID, true);
         mActivityTestRule.startMainActivityOnBlankPage();
+        mScrimColor = ApiCompatibilityUtils.getColor(mActivityTestRule.getActivity().getResources(),
+                org.chromium.chrome.R.color.black_alpha_65);
     }
 
     @After
@@ -109,7 +120,81 @@ public class StatusBarColorControllerTest {
         ThemeTestUtils.assertStatusBarColor(activity, expectedDefaultStandardColor);
     }
 
+    /**
+     * Test that the status indicator color is included in the color calculation correctly.
+     */
+    @Test
+    @LargeTest
+    @Feature({"StatusBar"})
+    @MinAndroidSdkLevel(Build.VERSION_CODES.LOLLIPOP)
+    @Restriction({UiRestriction.RESTRICTION_TYPE_PHONE}) // Status bar is always black on tablets
+    public void testColorWithStatusIndicator() {
+        final ChromeActivity activity = mActivityTestRule.getActivity();
+        final StatusBarColorController statusBarColorController =
+                mActivityTestRule.getActivity().getStatusBarColorController();
+        final Supplier<Integer> statusBarColor = () -> activity.getWindow().getStatusBarColor();
+        final int initialColor = statusBarColor.get();
+
+        // Initially, StatusBarColorController#getStatusBarColorWithoutStatusIndicator should return
+        // the same color as the current status bar color.
+        Assert.assertEquals(
+                "Wrong initial value returned by #getStatusBarColorWithoutStatusIndicator().",
+                initialColor, statusBarColorController.getStatusBarColorWithoutStatusIndicator());
+
+        // Set a status indicator color.
+        TestThreadUtils.runOnUiThreadBlocking(
+                () -> statusBarColorController.onStatusIndicatorColorChanged(Color.BLUE));
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+            Assert.assertEquals("Wrong status bar color for Android L.",
+                    ColorUtils.getDarkenedColorForStatusBar(Color.BLUE),
+                    statusBarColor.get().intValue());
+        } else {
+            Assert.assertEquals("Wrong status bar color for Android M+.", Color.BLUE,
+                    statusBarColor.get().intValue());
+        }
+
+        // StatusBarColorController#getStatusBarColorWithoutStatusIndicator should still return the
+        // initial color.
+        Assert.assertEquals("Wrong value returned by #getStatusBarColorWithoutStatusIndicator().",
+                initialColor, statusBarColorController.getStatusBarColorWithoutStatusIndicator());
+
+        // Set scrim.
+        TestThreadUtils.runOnUiThreadBlocking(
+                () -> statusBarColorController.getStatusBarScrimDelegate()
+                        .setStatusBarScrimFraction(.5f));
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+            // If we're already darkening the color for Android L, scrim shouldn't be applied.
+            Assert.assertEquals("Wrong status bar color w/ scrim for Android L.",
+                    ColorUtils.getDarkenedColorForStatusBar(Color.BLUE),
+                    statusBarColor.get().intValue());
+        } else {
+            // Otherwise, the resulting color should be a scrimmed version of the status bar color.
+            Assert.assertEquals("Wrong status bar color w/ scrim for Android M+.",
+                    getScrimmedColor(Color.BLUE, .5f), statusBarColor.get().intValue());
+        }
+
+        TestThreadUtils.runOnUiThreadBlocking(() -> {
+            // Remove scrim.
+            statusBarColorController.getStatusBarScrimDelegate().setStatusBarScrimFraction(.0f);
+            // Set the status indicator color to the default, i.e. transparent.
+            statusBarColorController.onStatusIndicatorColorChanged(Color.TRANSPARENT);
+        });
+
+        // Now, the status bar color should be back to the initial color.
+        Assert.assertEquals(
+                "Wrong status bar color after the status indicator color is set to default.",
+                initialColor, statusBarColor.get().intValue());
+    }
+
     private int defaultColorFallbackToBlack(int color) {
         return (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) ? Color.BLACK : color;
     }
+
+    private int getScrimmedColor(@ColorInt int color, float fraction) {
+        final float scrimColorAlpha = (mScrimColor >>> 24) / 255f;
+        final int scrimColorOpaque = mScrimColor & 0xFF000000;
+        return ColorUtils.getColorWithOverlay(color, scrimColorOpaque, fraction * scrimColorAlpha);
+    }
 }

chrome/android/junit/src/org/chromium/chrome/browser/status_indicator/StatusIndicatorMediatorTest.java

@@ -4,13 +4,14 @@
 
 package org.chromium.chrome.browser.status_indicator;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
+import android.graphics.Color;
 import android.view.View;
 
 import org.junit.Before;
@@ -37,6 +38,12 @@ public class StatusIndicatorMediatorTest {
     @Mock
     ChromeFullscreenManager mFullscreenManager;
 
+    @Mock
+    View mStatusIndicatorView;
+
+    @Mock
+    StatusIndicatorCoordinator.StatusIndicatorObserver mObserver;
+
     private PropertyModel mModel;
     private StatusIndicatorMediator mMediator;
 
@@ -47,24 +54,38 @@ public class StatusIndicatorMediatorTest {
                          .with(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY, View.GONE)
                          .with(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE, false)
                          .build();
-        mMediator = new StatusIndicatorMediator(mModel, mFullscreenManager);
+        mMediator = new StatusIndicatorMediator(mModel, mFullscreenManager, () -> Color.WHITE);
     }
 
     @Test
     public void testHeightChangeAddsListener() {
-        //
-        mMediator.onStatusIndicatorHeightChanged(70);
+        // After layout
+        setViewHeight(70);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
         verify(mFullscreenManager).addListener(mMediator);
     }
 
+    @Test
+    public void testHeightChangeNotifiesObservers() {
+        // Add an observer.
+        mMediator.addObserver(mObserver);
+        // After layout
+        setViewHeight(70);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
+        verify(mObserver).onStatusIndicatorHeightChanged(70);
+        mMediator.removeObserver(mObserver);
+    }
+
     @Test
     public void testHeightChangeDoesNotRemoveListenerImmediately() {
         // Show the status indicator.
-        mMediator.onStatusIndicatorHeightChanged(70);
+        setViewHeight(70);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
         mMediator.onControlsOffsetChanged(0, 70, 0, 0, false);
 
         // Now, hide it. Listener shouldn't be removed.
-        mMediator.onStatusIndicatorHeightChanged(0);
+        setViewHeight(0);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
         verify(mFullscreenManager, never()).removeListener(mMediator);
 
         // Once the hiding animation is done...
@@ -76,52 +97,51 @@ public class StatusIndicatorMediatorTest {
     @Test
     public void testHeightChangeToZeroMakesAndroidViewGone() {
         // Show the status indicator.
-        mMediator.onStatusIndicatorHeightChanged(70);
+        setViewHeight(70);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
         mMediator.onControlsOffsetChanged(0, 70, 0, 0, false);
         // The Android view should be visible at this point.
-        assertThat(mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY),
-                equalTo(View.VISIBLE));
+        assertEquals(View.VISIBLE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         // Now hide it.
-        mMediator.onStatusIndicatorHeightChanged(0);
+        setViewHeight(0);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
         // The hiding animation...
         mMediator.onControlsOffsetChanged(0, 30, 0, 0, false);
         // Android view will be gone once the animation starts.
-        assertThat(
-                mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY), equalTo(View.GONE));
+        assertEquals(View.GONE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         mMediator.onControlsOffsetChanged(0, 0, 0, 0, false);
         // Shouldn't make the Android view invisible. It should stay gone.
-        assertThat(
-                mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY), equalTo(View.GONE));
+        assertEquals(View.GONE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
     }
 
     @Test
     public void testOffsetChangeUpdatesVisibility() {
         // Initially, the Android view should be GONE.
-        mMediator.onStatusIndicatorHeightChanged(20);
-        assertThat(
-                mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY), equalTo(View.GONE));
+        setViewHeight(20);
+        mMediator.onLayoutChange(mStatusIndicatorView, 0, 0, 0, 0, 0, 0, 0, 0);
+        assertEquals(View.GONE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         // Assume the status indicator is completely hidden.
         mMediator.onControlsOffsetChanged(0, 0, 0, 0, false);
-        assertThat(mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY),
-                equalTo(View.INVISIBLE));
+        assertEquals(View.INVISIBLE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         assertFalse(mModel.get(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE));
 
         // Status indicator is partially showing.
         mMediator.onControlsOffsetChanged(0, 10, 0, 0, false);
-        assertThat(mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY),
-                equalTo(View.INVISIBLE));
+        assertEquals(View.INVISIBLE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         assertTrue(mModel.get(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE));
 
         // Status indicator is fully showing, 20px.
         mMediator.onControlsOffsetChanged(0, 20, 0, 0, false);
-        assertThat(mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY),
-                equalTo(View.VISIBLE));
+        assertEquals(View.VISIBLE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         assertTrue(mModel.get(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE));
 
         // Hide again.
         mMediator.onControlsOffsetChanged(0, 0, 0, 0, false);
-        assertThat(mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY),
-                equalTo(View.INVISIBLE));
+        assertEquals(View.INVISIBLE, mModel.get(StatusIndicatorProperties.ANDROID_VIEW_VISIBILITY));
         assertFalse(mModel.get(StatusIndicatorProperties.COMPOSITED_VIEW_VISIBLE));
     }
+
+    private void setViewHeight(int height) {
+        when(mStatusIndicatorView.getHeight()).thenReturn(height);
+    }
 }

chrome/browser/ui/android/strings/android_chrome_strings.grd

@@ -2986,6 +2986,14 @@ To change this setting, <ph name="BEGIN_LINK">&lt;resetlink&gt;</ph>reset sync<p
         See downloads
       </message>
 
+      <!-- Offline indicator v2 -->
+      <message name="IDS_OFFLINE_INDICATOR_V2_OFFLINE_TEXT" desc="Text to be displayed in the status indicator above the toolbar that lets the users know they are offline.">
+        No internet connection
+      </message>
+      <message name="IDS_OFFLINE_INDICATOR_V2_BACK_ONLINE_TEXT" desc="Text to be displayed in the status indicator above the toolbar when the device goes back online.">
+        Back online
+      </message>
+
       <!-- Find in page -->
       <message name="IDS_HINT_FIND_IN_PAGE" desc="Hint text to show for the find in page search field when the search field is empty.">
         Find in page

chrome/browser/ui/android/strings/android_chrome_strings_grd/IDS_OFFLINE_INDICATOR_V2_BACK_ONLINE_TEXT.png.sha1

+4762643cd3a3599e3bf15952b96ba688982070a4
\ No newline at end of file

chrome/browser/ui/android/strings/android_chrome_strings_grd/IDS_OFFLINE_INDICATOR_V2_OFFLINE_TEXT.png.sha1

+09604c33a54c4113aa3874f6f178dede6334c846
\ No newline at end of file

components/browser_ui/styles/android/java/src/org/chromium/components/browser_ui/styles/ChromeColors.java

@@ -9,6 +9,7 @@ import android.content.res.ColorStateList;
 import android.content.res.Resources;
 import android.support.v7.content.res.AppCompatResources;
 
+import androidx.annotation.ColorInt;
 import androidx.annotation.ColorRes;
 
 import org.chromium.base.ApiCompatibilityUtils;
@@ -25,7 +26,7 @@ public class ChromeColors {
      *        adaptive default color.
      * @return The default theme color.
      */
-    public static @ColorRes int getDefaultThemeColor(Resources res, boolean forceDarkBgColor) {
+    public static @ColorInt int getDefaultThemeColor(Resources res, boolean forceDarkBgColor) {
         return forceDarkBgColor
                 ? ApiCompatibilityUtils.getColor(res, R.color.toolbar_background_primary_dark)
                 : ApiCompatibilityUtils.getColor(res, R.color.toolbar_background_primary);
@@ -40,7 +41,7 @@ public class ChromeColors {
      *        returns adaptive primary background color.
      * @return The primary background color.
      */
-    public static @ColorRes int getPrimaryBackgroundColor(Resources res, boolean forceDarkBgColor) {
+    public static @ColorInt int getPrimaryBackgroundColor(Resources res, boolean forceDarkBgColor) {
         return forceDarkBgColor
                 ? ApiCompatibilityUtils.getColor(res, org.chromium.ui.R.color.dark_primary_color)
                 : ApiCompatibilityUtils.getColor(res, org.chromium.ui.R.color.modern_primary_color);

ui/android/java/res/values-night/colors.xml

@@ -30,6 +30,7 @@
     <color name="default_bg_color_elev_2">@color/default_bg_color_dark_elev_2</color>
     <color name="default_bg_color_elev_3">@color/default_bg_color_dark_elev_3</color>
     <color name="default_bg_color_elev_4">@color/default_bg_color_dark_elev_4</color>
+    <color name="default_bg_color_blue">@color/modern_blue_300</color>
 
     <!-- Bottom sheet colors -->
     <color name="sheet_bg_color">@color/default_bg_color_dark_elev_4</color>

ui/android/java/res/values/colors.xml

@@ -46,6 +46,8 @@
     <color name="modern_primary_color" tools:ignore="UnusedResources">@color/default_bg_color_light</color>
     <color name="modern_secondary_color" tools:ignore="UnusedResources">@color/modern_grey_100</color>
 
+    <color name="default_bg_color_blue" tools:ignore="UnusedResources">@color/modern_blue_600</color>
+
     <!-- Dark background and branding color. -->
     <color name="dark_primary_color" tools:ignore="UnusedResources">
         @color/modern_grey_900