Speed up corner animation

The size of the window changes during the animation progress, making the
window look rounded for longer. What we want is to animate it from the
shape of the icon to the shape of the display.

Change-Id: Ib4889b697bf78cdc37c160130fde961650080fb7
Fixes: 120553563
Test: visual

quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java

@@ -618,7 +618,7 @@ public class LauncherAppTransitionManagerImpl extends LauncherAppTransitionManag
                 // Animate window corner radius from 100% to windowCornerRadius.
                 float windowCornerRadius = RecentsModel.INSTANCE.get(mLauncher)
                         .getWindowCornerRadius();
-                float circleRadius = scaledWindowWidth / 2f;
+                float circleRadius = iconWidth / 2f;
                 float windowRadius = Utilities.mapRange(easePercent, circleRadius,
                         windowCornerRadius);