[Modularization] Extract InfoBarContainerLayout#Item into separate file in...

[Modularization] Extract InfoBarContainerLayout#Item into separate file in chrome/browser/ui/messages

The interface needs to be accessible to infobar implementation because some
info bars override its methods (e.g. getPriority) to affect
InfoBarContainerLayout behavior.

BUG=1056346
R=mdjones@chromium.org
TBR=juncai@chromium.org,benwells@chromium.org

Change-Id: I6e79f031fad0d48feafb30fb8ae6064702589789
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2082874Reviewed-by: Pavel Yatsuk <pavely@chromium.org>
Reviewed-by: Jun Cai <juncai@chromium.org>
Reviewed-by: Theresa  <twellington@chromium.org>
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Commit-Queue: Pavel Yatsuk <pavely@chromium.org>
Cr-Commit-Position: refs/heads/master@{#747509}

chrome/android/chrome_java_sources.gni

@@ -830,8 +830,8 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/infobar/InfoBarContainer.java",
   "java/src/org/chromium/chrome/browser/infobar/InfoBarContainerLayout.java",
   "java/src/org/chromium/chrome/browser/infobar/InfoBarContainerView.java",
+  "java/src/org/chromium/chrome/browser/infobar/InfoBarInteractionHandler.java",
   "java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java",
-  "java/src/org/chromium/chrome/browser/infobar/InfoBarView.java",
   "java/src/org/chromium/chrome/browser/infobar/InfoBarWrapper.java",
   "java/src/org/chromium/chrome/browser/infobar/InstallableAmbientBadgeInfoBar.java",
   "java/src/org/chromium/chrome/browser/infobar/InstantAppsInfoBar.java",

chrome/android/java/src/org/chromium/chrome/browser/infobar/IPHInfoBarSupport.java

@@ -11,7 +11,7 @@ import android.widget.PopupWindow.OnDismissListener;
 import androidx.annotation.StringRes;
 
 import org.chromium.chrome.browser.infobar.InfoBarContainer.InfoBarContainerObserver;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.components.browser_ui.widget.textbubble.TextBubble;
 import org.chromium.components.feature_engagement.FeatureConstants;
 
@@ -105,7 +105,7 @@ public class IPHInfoBarSupport implements OnDismissListener,
     // warning for a field guaranteed to be non-null being checked for null equality needs to be
     // suppressed.
     @Override
-    public void notifyAllAnimationsFinished(Item frontInfoBar) {
+    public void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar) {
         View view = frontInfoBar == null ? null : frontInfoBar.getView();
 
         if (mCurrentState != null) {

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java

@@ -15,6 +15,7 @@ import androidx.annotation.Nullable;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.NativeMethods;
 import org.chromium.chrome.R;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.chrome.browser.ui.messages.snackbar.SnackbarManager;
 import org.chromium.ui.modelutil.PropertyModel;
 
@@ -23,7 +24,7 @@ import org.chromium.ui.modelutil.PropertyModel;
  * Note that infobars expire by default when a new navigation occurs.
  * Make sure to use setExpireOnNavigation(false) if you want an infobar to be sticky.
  */
-public abstract class InfoBar implements InfoBarView {
+public abstract class InfoBar implements InfoBarInteractionHandler, InfoBarUiItem {
     private static final String TAG = "InfoBar";
 
     private final int mIconDrawableId;
@@ -131,6 +132,12 @@ public abstract class InfoBar implements InfoBarView {
         return false;
     }
 
+    /**
+     * Prepares the InfoBar for display and adds InfoBar-specific controls to the layout.
+     * @param layout Layout containing all of the controls.
+     */
+    protected void createContent(InfoBarLayout layout) {}
+
     /**
      * Prepares and inserts views into an {@link InfoBarCompactLayout}.
      * {@link #usesCompactLayout} must return 'true' for this function to be called.
@@ -252,6 +259,11 @@ public abstract class InfoBar implements InfoBarView {
         mControlsEnabled = state;
     }
 
+    @Override
+    public void onClick() {
+        setControlsEnabled(false);
+    }
+
     @Override
     public void onButtonClicked(boolean isPrimaryButton) {
     }
@@ -278,10 +290,6 @@ public abstract class InfoBar implements InfoBarView {
         }
     }
 
-    @Override
-    public void createContent(InfoBarLayout layout) {
-    }
-
     @InfoBarIdentifier
 
     @NativeMethods

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarCompactLayout.java

@@ -33,7 +33,7 @@ import org.chromium.ui.text.NoUnderlineClickableSpan;
  * declares itself to be using a compact layout via {@link InfoBar#usesCompactLayout}.
  */
 public class InfoBarCompactLayout extends LinearLayout implements View.OnClickListener {
-    private final InfoBarView mInfoBarView;
+    private final InfoBarInteractionHandler mInfoBar;
     private final int mCompactInfoBarSize;
     private final int mIconWidth;
     private final View mCloseButton;
@@ -41,15 +41,15 @@ public class InfoBarCompactLayout extends LinearLayout implements View.OnClickLi
     /**
      * Constructs a compat layout for the specified infobar.
      * @param context The context used to render.
-     * @param infoBarView {@link InfoBarView} that listens to events.
+     * @param infoBar {@link InfoBarInteractionHandler} that listens to events.
      * @param iconResourceId Resource ID of the icon to use for the infobar.
      * @param iconTintId The {@link ColorRes} used as tint for {@code iconResourceId}.
      * @param iconBitmap Bitmap for the icon to use, if {@code iconResourceId} is not set.
      */
-    InfoBarCompactLayout(Context context, InfoBarView infoBarView, int iconResourceId,
+    InfoBarCompactLayout(Context context, InfoBarInteractionHandler infoBar, int iconResourceId,
             @ColorRes int iconTintId, Bitmap iconBitmap) {
         super(context);
-        mInfoBarView = infoBarView;
+        mInfoBar = infoBar;
         mCompactInfoBarSize =
                 context.getResources().getDimensionPixelOffset(R.dimen.infobar_compact_size);
         mIconWidth = context.getResources().getDimensionPixelOffset(R.dimen.infobar_big_icon_size);
@@ -64,7 +64,7 @@ public class InfoBarCompactLayout extends LinearLayout implements View.OnClickLi
     @Override
     public void onClick(View view) {
         if (view.getId() == R.id.infobar_close_button) {
-            mInfoBarView.onCloseButtonClicked();
+            mInfoBar.onCloseButtonClicked();
         } else {
             assert false;
         }

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarContainer.java

@@ -16,11 +16,11 @@ import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.NativeMethods;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabImpl;
 import org.chromium.chrome.browser.tab.TabObserver;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.chrome.browser.ui.messages.snackbar.SnackbarManager;
 import org.chromium.chrome.browser.util.AccessibilityUtil;
 import org.chromium.chrome.browser.widget.bottomsheet.BottomSheetController;
@@ -67,7 +67,7 @@ public class InfoBarContainer implements UserData, KeyboardVisibilityListener {
          * Notifies the subscriber when all animations are finished.
          * @param frontInfoBar The frontmost infobar or {@code null} if none are showing.
          */
-        void notifyAllAnimationsFinished(Item frontInfoBar);
+        void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar);
     }
 
     /**
@@ -164,7 +164,7 @@ public class InfoBarContainer implements UserData, KeyboardVisibilityListener {
                 }
 
                 @Override
-                public void notifyAllAnimationsFinished(Item frontInfoBar) {
+                public void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar) {
                     for (InfoBarAnimationListener listener : mAnimationListeners) {
                         listener.notifyAllAnimationsFinished(frontInfoBar);
                     }

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarContainerLayout.java

@@ -18,14 +18,11 @@ import android.view.MotionEvent;
 import android.view.View;
 import android.widget.FrameLayout;
 
-import androidx.annotation.IntDef;
-
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.infobar.InfoBarContainer.InfoBarAnimationListener;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.ui.widget.OptimizedFrameLayout;
 
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 
 /**
@@ -67,61 +64,6 @@ import java.util.ArrayList;
  * TODO(newt): finalize animation timings and interpolators.
  */
 public class InfoBarContainerLayout extends OptimizedFrameLayout {
-    /**
-     * An interface for items that can be added to an InfoBarContainerLayout.
-     */
-    public interface Item {
-        // The infobar priority.
-        @IntDef({InfoBarPriority.CRITICAL, InfoBarPriority.USER_TRIGGERED,
-                InfoBarPriority.PAGE_TRIGGERED, InfoBarPriority.BACKGROUND})
-        @Retention(RetentionPolicy.SOURCE)
-        public @interface InfoBarPriority {
-            int CRITICAL = 0;
-            int USER_TRIGGERED = 1;
-            int PAGE_TRIGGERED = 2;
-            int BACKGROUND = 3;
-        }
-
-        /**
-         * Returns the View that represents this infobar. This should have no background or borders;
-         * a background and shadow will be added by a wrapper view.
-         */
-        View getView();
-
-        /**
-         * Returns whether controls for this View should be clickable. If false, all input events on
-         * this item will be ignored.
-         */
-        boolean areControlsEnabled();
-
-        /**
-         * Sets whether or not controls for this View should be clickable. This does not affect the
-         * visual state of the infobar.
-         * @param state If false, all input events on this Item will be ignored.
-         */
-        void setControlsEnabled(boolean state);
-
-        /**
-         * Returns the accessibility text to announce when this infobar is first shown.
-         */
-        CharSequence getAccessibilityText();
-
-        /**
-         * Returns the priority of an infobar. High priority infobar is shown in front of low
-         * priority infobar. If infobars have the same priorities, the most recently added one
-         * is shown behind previous ones.
-         *
-         */
-        int getPriority();
-
-        /**
-         * Returns the type of infobar, as best as can be determined at this time.  See
-         * components/infobars/core/infobar_delegate.h.
-         */
-        @InfoBarIdentifier
-        int getInfoBarIdentifier();
-    }
-
     /**
      * Creates an empty InfoBarContainerLayout.
      */
@@ -139,7 +81,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
      * Adds an infobar to the container. The infobar appearing animation will happen after the
      * current animation, if any, finishes.
      */
-    void addInfoBar(Item item) {
+    void addInfoBar(InfoBarUiItem item) {
         mItems.add(findInsertIndex(item), item);
         processPendingAnimations();
     }
@@ -148,7 +90,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
      * Finds the appropriate index in the infobar stack for inserting this item.
      * @param item The infobar to be inserted.
      */
-    private int findInsertIndex(Item item) {
+    private int findInsertIndex(InfoBarUiItem item) {
         for (int i = 0; i < mItems.size(); ++i) {
             if (item.getPriority() < mItems.get(i).getPriority()) {
                 return i;
@@ -162,14 +104,14 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
      * Removes an infobar from the container. The infobar will be animated off the screen if it's
      * currently visible.
      */
-    void removeInfoBar(Item item) {
+    void removeInfoBar(InfoBarUiItem item) {
         mItems.remove(item);
         processPendingAnimations();
     }
 
     /**
-     * Notifies that an infobar's View ({@link Item#getView}) has changed. If the
-     * infobar is visible in the front of the stack, the infobar will fade out the old contents,
+     * Notifies that an infobar's View ({@link InfoBarUiItem#getView}) has changed. If
+     * the infobar is visible in the front of the stack, the infobar will fade out the old contents,
      * resize, then fade in the new contents.
      */
     void notifyInfoBarViewChanged() {
@@ -271,11 +213,11 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
      * content fades in.
      */
     private class FirstInfoBarAppearingAnimation extends InfoBarAnimation {
-        private Item mFrontItem;
+        private InfoBarUiItem mFrontItem;
         private InfoBarWrapper mFrontWrapper;
         private View mFrontContents;
 
-        FirstInfoBarAppearingAnimation(Item frontItem) {
+        FirstInfoBarAppearingAnimation(InfoBarUiItem frontItem) {
             mFrontItem = frontItem;
         }
 
@@ -318,12 +260,12 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
      * will be resized simulatenously to the new desired size.
      */
     private class FrontInfoBarAppearingAnimation extends InfoBarAnimation {
-        private Item mFrontItem;
+        private InfoBarUiItem mFrontItem;
         private InfoBarWrapper mFrontWrapper;
         private InfoBarWrapper mOldFrontWrapper;
         private View mFrontContents;
 
-        FrontInfoBarAppearingAnimation(Item frontItem) {
+        FrontInfoBarAppearingAnimation(InfoBarUiItem frontItem) {
             mFrontItem = frontItem;
         }
 
@@ -415,7 +357,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
     private class BackInfoBarAppearingAnimation extends InfoBarAnimation {
         private InfoBarWrapper mAppearingWrapper;
 
-        BackInfoBarAppearingAnimation(Item appearingItem) {
+        BackInfoBarAppearingAnimation(InfoBarUiItem appearingItem) {
             mAppearingWrapper = new InfoBarWrapper(getContext(), appearingItem);
         }
 
@@ -714,7 +656,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
      * This list is updated immediately when addInfoBar(), removeInfoBar(), and swapInfoBar() are
      * called; so during animations, it does *not* match the currently visible views.
      */
-    private final ArrayList<Item> mItems = new ArrayList<>();
+    private final ArrayList<InfoBarUiItem> mItems = new ArrayList<>();
 
     /**
      * The currently visible InfoBarWrappers, in front to back order.
@@ -747,7 +689,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
         // First, remove any infobars that are no longer in mItems, if any. Check the back infobars
         // before the front.
         for (int i = mInfoBarWrappers.size() - 1; i >= 0; i--) {
-            Item visibleItem = mInfoBarWrappers.get(i).getItem();
+            InfoBarUiItem visibleItem = mInfoBarWrappers.get(i).getItem();
             if (!mItems.contains(visibleItem)) {
                 if (i == 0 && mInfoBarWrappers.size() >= 2) {
                     // Remove the front infobar and reveal the second-to-front infobar.
@@ -771,7 +713,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
 
         // Second, run swap animation on front infobar if needed.
         if (!mInfoBarWrappers.isEmpty()) {
-            Item frontItem = mInfoBarWrappers.get(0).getItem();
+            InfoBarUiItem frontItem = mInfoBarWrappers.get(0).getItem();
             View frontContents = mInfoBarWrappers.get(0).getChildAt(0);
             if (frontContents != frontItem.getView()) {
                 runAnimation(new FrontInfoBarSwapContentsAnimation());
@@ -785,8 +727,8 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
         // mInfoBarWrappers.
         if (!mInfoBarWrappers.isEmpty()) {
             // Find the infobar with the highest index that isn't currently being shown.
-            Item currentVisibleItem = mInfoBarWrappers.get(0).getItem();
-            Item itemToInsert = null;
+            InfoBarUiItem currentVisibleItem = mInfoBarWrappers.get(0).getItem();
+            InfoBarUiItem itemToInsert = null;
             for (int checkIndex = 0; checkIndex < mItems.size(); checkIndex++) {
                 if (mItems.get(checkIndex) == currentVisibleItem) {
                     // There are no remaining infobars that can possibly override the
@@ -807,7 +749,7 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
         // Fourth, check if we should add any infobars at the back.
         int desiredChildCount = Math.min(mItems.size(), MAX_STACK_DEPTH);
         if (mInfoBarWrappers.size() < desiredChildCount) {
-            Item itemToShow = mItems.get(mInfoBarWrappers.size());
+            InfoBarUiItem itemToShow = mItems.get(mInfoBarWrappers.size());
             runAnimation(mInfoBarWrappers.isEmpty()
                     ? new FirstInfoBarAppearingAnimation(itemToShow)
                     : new BackInfoBarAppearingAnimation(itemToShow));
@@ -815,7 +757,8 @@ public class InfoBarContainerLayout extends OptimizedFrameLayout {
         }
 
         // Fifth, now that we've stabilized, let listeners know that we have no more animations.
-        Item frontItem = mInfoBarWrappers.size() > 0 ? mInfoBarWrappers.get(0).getItem() : null;
+        InfoBarUiItem frontItem =
+                mInfoBarWrappers.size() > 0 ? mInfoBarWrappers.get(0).getItem() : null;
         mAnimationListener.notifyAllAnimationsFinished(frontItem);
     }
 

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarContainerView.java

@@ -17,6 +17,7 @@ import androidx.annotation.VisibleForTesting;
 
 import org.chromium.chrome.browser.banners.SwipableOverlayView;
 import org.chromium.chrome.browser.fullscreen.ChromeFullscreenManager;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.ui.display.DisplayAndroid;
 import org.chromium.ui.display.DisplayUtil;
 
@@ -92,8 +93,7 @@ public class InfoBarContainerView extends SwipableOverlayView {
                     }
 
                     @Override
-                    public void notifyAllAnimationsFinished(
-                            InfoBarContainerLayout.Item frontInfoBar) {
+                    public void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar) {
                         mContainerViewObserver.notifyAllAnimationsFinished(frontInfoBar);
                     }
                 });

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarView.java → chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarInteractionHandler.java

@@ -4,16 +4,14 @@
 
 package org.chromium.chrome.browser.infobar;
 
-
 /**
  * Functions needed to display an InfoBar UI.
  */
-public interface InfoBarView extends InfoBarContainerLayout.Item {
+public interface InfoBarInteractionHandler {
     /**
-     * Prepares the InfoBar for display and adds InfoBar-specific controls to the layout.
-     * @param layout Layout containing all of the controls.
+     * Handles click on the infobar. It is invoked before one of the following functions.
      */
-    public void createContent(InfoBarLayout layout);
+    public void onClick();
 
     /**
      * Takes some action related to the link being clicked.

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java

@@ -50,9 +50,10 @@ import java.util.List;
  * - (optional) One or two buttons with text at the bottom, or a button paired with an ImageView.
  *
  * When adding custom views, widths and heights defined in the LayoutParams will be ignored.
- * Setting a minimum width using {@link View#setMininumWidth()} will be obeyed.
+ * Setting a minimum width using {@link View#setMinimumWidth()} will be obeyed.
  *
- * Logic for what happens when things are clicked should be implemented by the InfoBarView.
+ * Logic for what happens when things are clicked should be implemented by the
+ * InfoBarInteractionHandler.
  */
 public final class InfoBarLayout extends ViewGroup implements View.OnClickListener {
 
@@ -87,7 +88,7 @@ public final class InfoBarLayout extends ViewGroup implements View.OnClickListen
     private final int mPadding;
     private final int mMinWidth;
 
-    private final InfoBarView mInfoBarView;
+    private final InfoBarInteractionHandler mInfoBar;
     private final ImageButton mCloseButton;
     private final InfoBarControlLayout mMessageLayout;
     private final List<InfoBarControlLayout> mControlLayouts;
@@ -106,18 +107,18 @@ public final class InfoBarLayout extends ViewGroup implements View.OnClickListen
      * message, the buttons, and/or the custom content using setMessage(), setButtons(), and
      * setCustomContent().
      * @param context The context used to render.
-     * @param infoBarView InfoBarView that listens to events.
+     * @param infoBar InfoBarInteractionHandler that listens to events.
      * @param iconResourceId ID of the icon to use for the infobar.
      * @param iconTintId The {@link ColorRes} used as tint for {@code iconResourceId}.
      * @param iconBitmap Bitmap for the icon to use, if the resource ID wasn't passed through.
      * @param message The message to show in the infobar.
      */
-    public InfoBarLayout(Context context, InfoBarView infoBarView, int iconResourceId,
+    public InfoBarLayout(Context context, InfoBarInteractionHandler infoBar, int iconResourceId,
             @ColorRes int iconTintId, Bitmap iconBitmap, CharSequence message) {
         super(context);
         mControlLayouts = new ArrayList<InfoBarControlLayout>();
 
-        mInfoBarView = infoBarView;
+        mInfoBar = infoBar;
 
         // Cache resource values.
         Resources res = getResources();
@@ -462,14 +463,14 @@ public final class InfoBarLayout extends ViewGroup implements View.OnClickListen
      */
     @Override
     public void onClick(View view) {
-        mInfoBarView.setControlsEnabled(false);
+        mInfoBar.onClick();
 
         if (view.getId() == R.id.infobar_close_button) {
-            mInfoBarView.onCloseButtonClicked();
+            mInfoBar.onCloseButtonClicked();
         } else if (view.getId() == R.id.button_primary) {
-            mInfoBarView.onButtonClicked(true);
+            mInfoBar.onButtonClicked(true);
         } else if (view.getId() == R.id.button_secondary) {
-            mInfoBarView.onButtonClicked(false);
+            mInfoBar.onButtonClicked(false);
         }
     }
 
@@ -509,7 +510,7 @@ public final class InfoBarLayout extends ViewGroup implements View.OnClickListen
     }
 
     private NoUnderlineClickableSpan createClickableSpan() {
-        return new NoUnderlineClickableSpan(getResources(), (view) -> mInfoBarView.onLinkClicked());
+        return new NoUnderlineClickableSpan(getResources(), (view) -> mInfoBar.onLinkClicked());
     }
 
     /**

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarWrapper.java

@@ -11,18 +11,18 @@ import android.view.View;
 import android.widget.FrameLayout;
 
 import org.chromium.chrome.R;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 
 /**
  * Layout that holds an infobar's contents and provides a background color and a top shadow.
  */
 class InfoBarWrapper extends FrameLayout {
-
-    private final InfoBarContainerLayout.Item mItem;
+    private final InfoBarUiItem mItem;
 
     /**
      * Constructor for inflating from Java.
      */
-    InfoBarWrapper(Context context, InfoBarContainerLayout.Item item) {
+    InfoBarWrapper(Context context, InfoBarUiItem item) {
         super(context);
         mItem = item;
         Resources res = context.getResources();
@@ -35,7 +35,7 @@ class InfoBarWrapper extends FrameLayout {
         setPadding(0, shadowHeight, 0, 0);
     }
 
-    InfoBarContainerLayout.Item getItem() {
+    InfoBarUiItem getItem() {
         return mItem;
     }
 

chrome/android/java/src/org/chromium/chrome/browser/sms/SmsReceiverInfoBar.java

@@ -15,7 +15,6 @@ import org.chromium.base.Log;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.infobar.ConfirmInfoBar;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item.InfoBarPriority;
 import org.chromium.chrome.browser.infobar.InfoBarLayout;
 import org.chromium.chrome.browser.ui.messages.infobar.InfoBarControlLayout;
 import org.chromium.ui.KeyboardVisibilityDelegate;

chrome/android/java/src/org/chromium/chrome/browser/survey/ChromeSurveyController.java

@@ -22,7 +22,6 @@ import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.ChromeVersionInfo;
 import org.chromium.chrome.browser.flags.ChromeFeatureList;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
 import org.chromium.chrome.browser.infobar.InfoBarIdentifier;
 import org.chromium.chrome.browser.infobar.SurveyInfoBar;
 import org.chromium.chrome.browser.infobar.SurveyInfoBarDelegate;
@@ -36,6 +35,7 @@ import org.chromium.chrome.browser.tab.TabObserver;
 import org.chromium.chrome.browser.tabmodel.EmptyTabModelSelectorObserver;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.tabmodel.TabModelSelectorObserver;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.components.variations.VariationsAssociatedData;
 
 import java.lang.annotation.Retention;
@@ -291,7 +291,7 @@ public class ChromeSurveyController implements InfoBarContainer.InfoBarAnimation
     public void notifyAnimationFinished(int animationType) {}
 
     @Override
-    public void notifyAllAnimationsFinished(Item frontInfoBar) {
+    public void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar) {
         mLoggingHandler.removeCallbacksAndMessages(null);
 
         // If the survey info bar is in front, start the countdown to log that it was displayed.

chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java

@@ -48,11 +48,11 @@ import org.chromium.chrome.browser.flags.ChromeFeatureList;
 import org.chromium.chrome.browser.infobar.InfoBar;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
 import org.chromium.chrome.browser.infobar.InfoBarContainer.InfoBarAnimationListener;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
 import org.chromium.chrome.browser.infobar.InstallableAmbientBadgeInfoBar;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabImpl;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.chrome.browser.webapps.WebappDataStorage;
 import org.chromium.chrome.test.ChromeActivityTestRule;
 import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
@@ -171,7 +171,7 @@ public class AppBannerManagerTest {
         }
 
         @Override
-        public void notifyAllAnimationsFinished(Item frontInfoBar) {
+        public void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar) {
             mDoneAnimating = true;
         }
     }

chrome/android/junit/src/org/chromium/chrome/browser/infobar/IPHInfoBarSupportTest.java

@@ -28,7 +28,7 @@ import org.chromium.base.test.BaseRobolectricTestRunner;
 import org.chromium.base.test.util.Feature;
 import org.chromium.chrome.browser.infobar.IPHInfoBarSupport.IPHBubbleDelegate;
 import org.chromium.chrome.browser.infobar.IPHInfoBarSupport.PopupState;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 import org.chromium.components.browser_ui.widget.textbubble.TextBubble;
 
 /** Tests {@link IPHInfoBarSupport}. */
@@ -38,7 +38,7 @@ public class IPHInfoBarSupportTest {
     @Mock
     private IPHBubbleDelegate mDelegate;
     @Mock
-    private Item mItem;
+    private InfoBarUiItem mItem;
     @Mock
     private View mView;
 

chrome/browser/ui/messages/android/BUILD.gn

@@ -18,6 +18,7 @@ android_library("java") {
   sources = [
     "java/src/org/chromium/chrome/browser/ui/messages/infobar/InfoBarControlLayout.java",
     "java/src/org/chromium/chrome/browser/ui/messages/infobar/InfoBarMessageView.java",
+    "java/src/org/chromium/chrome/browser/ui/messages/infobar/InfoBarUiItem.java",
     "java/src/org/chromium/chrome/browser/ui/messages/snackbar/Snackbar.java",
     "java/src/org/chromium/chrome/browser/ui/messages/snackbar/SnackbarCollection.java",
     "java/src/org/chromium/chrome/browser/ui/messages/snackbar/SnackbarManager.java",
@@ -29,6 +30,7 @@ android_library("java") {
     "//chrome/browser/util:java",
     "//components/browser_ui/styles/android:java_resources",
     "//components/browser_ui/widget/android:java",
+    "//components/infobars/core:infobar_enums_java",
     "//third_party/android_deps:androidx_annotation_annotation_java",
     "//third_party/android_deps:com_android_support_appcompat_v7_java",
     "//ui/android:ui_full_java",

chrome/browser/ui/messages/android/java/src/org/chromium/chrome/browser/ui/messages/infobar/InfoBarUiItem.java

+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.ui.messages.infobar;
+
+import android.view.View;
+
+import androidx.annotation.IntDef;
+
+import org.chromium.chrome.browser.infobar.InfoBarIdentifier;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * An interface for items that can be added to an InfoBarContainerLayout.
+ */
+public interface InfoBarUiItem {
+    // The infobar priority.
+    @IntDef({InfoBarPriority.CRITICAL, InfoBarPriority.USER_TRIGGERED,
+            InfoBarPriority.PAGE_TRIGGERED, InfoBarPriority.BACKGROUND})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface InfoBarPriority {
+        int CRITICAL = 0;
+        int USER_TRIGGERED = 1;
+        int PAGE_TRIGGERED = 2;
+        int BACKGROUND = 3;
+    }
+
+    /**
+     * Returns the View that represents this infobar. This should have no background or borders;
+     * a background and shadow will be added by a wrapper view.
+     */
+    View getView();
+
+    /**
+     * Returns whether controls for this View should be clickable. If false, all input events on
+     * this item will be ignored.
+     */
+    boolean areControlsEnabled();
+
+    /**
+     * Sets whether or not controls for this View should be clickable. This does not affect the
+     * visual state of the infobar.
+     * @param state If false, all input events on this Item will be ignored.
+     */
+    void setControlsEnabled(boolean state);
+
+    /**
+     * Returns the accessibility text to announce when this infobar is first shown.
+     */
+    CharSequence getAccessibilityText();
+
+    /**
+     * Returns the priority of an infobar. High priority infobar is shown in front of low
+     * priority infobar. If infobars have the same priorities, the most recently added one
+     * is shown behind previous ones.
+     *
+     */
+    int getPriority();
+
+    /**
+     * Returns the type of infobar, as best as can be determined at this time.  See
+     * components/infobars/core/infobar_delegate.h.
+     */
+    @InfoBarIdentifier
+    int getInfoBarIdentifier();
+}

chrome/test/android/javatests/src/org/chromium/chrome/test/util/InfoBarTestAnimationListener.java

@@ -6,7 +6,7 @@ package org.chromium.chrome.test.util;
 
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.chrome.browser.infobar.InfoBarContainer.InfoBarAnimationListener;
-import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
+import org.chromium.chrome.browser.ui.messages.infobar.InfoBarUiItem;
 
 import java.util.concurrent.TimeoutException;
 
@@ -47,7 +47,7 @@ public class InfoBarTestAnimationListener implements InfoBarAnimationListener {
     }
 
     @Override
-    public void notifyAllAnimationsFinished(Item frontInfoBar) {}
+    public void notifyAllAnimationsFinished(InfoBarUiItem frontInfoBar) {}
 
     public void addInfoBarAnimationFinished(String msg) throws TimeoutException {
         mAddAnimationFinished.waitForCallback(msg, mAddCallCount);