[DO NOT MERGE] Fix some visual jumps when swiping home

All caused by running the transform progress from 0 to 1 instead of
starting at whatever the progress was before ending the gesture, e.g.:
- When swiping to home without animating into an icon, the corner radius
  was set back to the window corner radius.
- Before this change, the clip didn't update throughout the animation,
  making the window slightly bigger than the floating icon view; after
  this change, the clip jumped to show the insets again before clipping
  back down during the home animation.

Partial backport of ag/Ie48f4b665a5bf3cbef76bdf7f043febe99fb84a0

Bug: 150680980
Change-Id: Ida65097f0ef7d2e11d48b84ecdd353ef89078015

quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java

@@ -386,6 +386,10 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
         // rounding at the end of the animation.
         float startRadius = mClipAnimationHelper.getCurrentCornerRadius();
         float endRadius = startRect.width() / 6f;
+
+        float startTransformProgress = mTransformParams.getProgress();
+        float endTransformProgress = 1;
+
         // We want the window alpha to be 0 once this threshold is met, so that the
         // FolderIconView can be seen morphing into the icon shape.
         final float windowAlphaThreshold = isFloatingIconView ? 1f - SHAPE_PROGRESS_DURATION : 1f;
@@ -409,7 +413,8 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
             public void onUpdate(RectF currentRect, float progress) {
                 homeAnim.setPlayFraction(progress);
 
-                mTransformParams.setProgress(progress)
+                mTransformParams.setProgress(
+                        Utilities.mapRange(progress, startTransformProgress, endTransformProgress))
                         .setCurrentRectAndTargetAlpha(currentRect, getWindowAlpha(progress));
                 if (isFloatingIconView) {
                     mTransformParams.setCornerRadius(endRadius * progress + startRadius

quickstep/recents_ui_overrides/src/com/android/quickstep/util/ClipAnimationHelper.java

@@ -402,6 +402,10 @@ public class ClipAnimationHelper {
             return this;
         }
 
+        public float getProgress() {
+            return progress;
+        }
+
         public TransformParams setCornerRadius(float cornerRadius) {
             this.cornerRadius = cornerRadius;
             return this;