Replace instances of ChromeAnimation in StripLayoutHelper

This change replaces the usages of ChromeAnimation in the tablet tab
strip. Several properties have been added to facilitate animation and
much of the logic has been simplified. Particularly, onUpdateAnimation
has been removed since most of the logic depending on its param
'jumpToEnd' (which was always false) was unused.

BUG=750381

Change-Id: If5c2346545254917cf690f4e5ddbb76a7dde3239
Reviewed-on: https://chromium-review.googlesource.com/791471Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#519853}

chrome/android/java/src/org/chromium/chrome/browser/compositor/overlays/strip/StripLayoutTab.java

@@ -14,7 +14,7 @@ import org.chromium.base.ObserverList;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.compositor.animation.CompositorAnimator;
-import org.chromium.chrome.browser.compositor.layouts.ChromeAnimation;
+import org.chromium.chrome.browser.compositor.animation.FloatProperty;
 import org.chromium.chrome.browser.compositor.layouts.LayoutRenderHost;
 import org.chromium.chrome.browser.compositor.layouts.LayoutUpdateHost;
 import org.chromium.chrome.browser.compositor.layouts.components.CompositorButton;
@@ -34,9 +34,7 @@ import java.util.List;
  * {@link StripLayoutTab} is used to keep track of the strip position and rendering information for
  * a particular tab so it can draw itself onto the GL canvas.
  */
-public class StripLayoutTab
-        implements ChromeAnimation.Animatable<StripLayoutTab.Property>, VirtualView {
-
+public class StripLayoutTab implements VirtualView {
     /** An observer interface for StripLayoutTab. */
     public interface Observer {
         /** @param visible Whether the StripLayoutTab is visible. */
@@ -61,15 +59,47 @@ public class StripLayoutTab
         void handleCloseButtonClick(StripLayoutTab tab, long time);
     }
 
-    /**
-     * Animatable properties that can be used with a {@link ChromeAnimation.Animatable} on a
-     * {@link StripLayoutTab}.
-     */
-    enum Property {
-        X_OFFSET,
-        Y_OFFSET,
-        WIDTH,
-    }
+    /** A property for animations to use for changing the X offset of the tab. */
+    public static final FloatProperty<StripLayoutTab> X_OFFSET =
+            new FloatProperty<StripLayoutTab>("offsetX") {
+                @Override
+                public void setValue(StripLayoutTab object, float value) {
+                    object.setOffsetX(value);
+                }
+
+                @Override
+                public Float get(StripLayoutTab object) {
+                    return object.getOffsetX();
+                }
+            };
+
+    /** A property for animations to use for changing the Y offset of the tab. */
+    public static final FloatProperty<StripLayoutTab> Y_OFFSET =
+            new FloatProperty<StripLayoutTab>("offsetY") {
+                @Override
+                public void setValue(StripLayoutTab object, float value) {
+                    object.setOffsetY(value);
+                }
+
+                @Override
+                public Float get(StripLayoutTab object) {
+                    return object.getOffsetY();
+                }
+            };
+
+    /** A property for animations to use for changing the width of the tab. */
+    public static final FloatProperty<StripLayoutTab> WIDTH =
+            new FloatProperty<StripLayoutTab>("width") {
+                @Override
+                public void setValue(StripLayoutTab object, float value) {
+                    object.setWidth(value);
+                }
+
+                @Override
+                public Float get(StripLayoutTab object) {
+                    return object.getHeight();
+                }
+            };
 
     // Behavior Constants
     private static final float VISIBILITY_FADE_CLOSE_BUTTON_PERCENTAGE = 0.99f;
@@ -514,24 +544,6 @@ public class StripLayoutTab
         if (mButtonOpacityAnimation != null) mButtonOpacityAnimation.end();
     }
 
-    @Override
-    public void setProperty(Property prop, float val) {
-        switch (prop) {
-            case X_OFFSET:
-                setOffsetX(val);
-                break;
-            case Y_OFFSET:
-                setOffsetY(val);
-                break;
-            case WIDTH:
-                setWidth(val);
-                break;
-        }
-    }
-
-    @Override
-    public void onPropertyAnimationFinished(Property prop) {}
-
     private void resetCloseRect() {
         RectF closeRect = getCloseRect();
         mCloseButton.setWidth(closeRect.width());