Chaning shadow algorithm to reuse bitmap instead of creating
a new bitmap on every tap

Bug: 27239742
Change-Id: I8e4259b79b1048e5fa82e7a1c8934ec7c52995be
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index dddd826..5d0f783 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -318,6 +318,7 @@
     void setStayPressed(boolean stayPressed) {
         mStayPressed = stayPressed;
         if (!stayPressed) {
+            HolographicOutlineHelper.obtain(getContext()).recycleShadowBitmap(mPressedBackground);
             mPressedBackground = null;
         } else {
             if (mPressedBackground == null) {