Remove the jaggies.

Bug: 74393813
Test: Swipe up, observe no jaggies
Change-Id: Ia620f01bf3078d544068df07faa5a7b81f621ed9
Signed-off-by: Winson Chung <winsonc@google.com>
diff --git a/quickstep/src/com/android/quickstep/TaskThumbnailView.java b/quickstep/src/com/android/quickstep/TaskThumbnailView.java
index 9b9c6f2..2cdd4e9 100644
--- a/quickstep/src/com/android/quickstep/TaskThumbnailView.java
+++ b/quickstep/src/com/android/quickstep/TaskThumbnailView.java
@@ -74,6 +74,7 @@
         mCornerRadius = getResources().getDimension(R.dimen.task_corner_radius);
         mFadeLength = getResources().getDimension(R.dimen.task_fade_length);
         mOverlay = TaskOverlayFactory.get(context).createOverlay(this);
+        mPaint.setFilterBitmap(true);
     }
 
     public void bind() {