Animate the bubble bar to show new bubble

This change updates that animation that plays when a new bubble notification is received. We now animate the entire bubble bar rather than the individual bubble.

Demo: http://recall/-/bJtug1HhvXkkeA4MQvIaiP/dwbsZJZlqLwJ2IG7RfJZ7c

Flag: ACONFIG com.android.wm.shell.enable_bubble_bar DEVELOPMENT
Bug: 280605846
Test: atest BubbleBarViewAnimatorTest
Change-Id: I2dc58ad61b880d76c9eefa462c3aee4e8bbb3584

quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java

@@ -189,6 +189,10 @@ public class BubbleBarViewController {
         return mBubbleBarTranslationY;
     }
 
+    float getBubbleBarCollapsedHeight() {
+        return mBarView.getBubbleBarCollapsedHeight();
+    }
+
     /**
      * Whether the bubble bar is visible or not.
      */
@@ -222,10 +226,9 @@ public class BubbleBarViewController {
         return mBarView.getBubbleBarBounds();
     }
 
-    /** The bounds of the animating bubble, or {@code null} if no bubble is animating. */
-    @Nullable
-    public Rect getAnimatingBubbleBounds() {
-        return mBarView.getAnimatingBubbleBounds();
+    /** Whether a new bubble is animating. */
+    public boolean isAnimatingNewBubble() {
+        return mBarView.isAnimatingNewBubble();
     }
 
     /** The horizontal margin of the bubble bar from the edge of the screen. */