Disable Drawable DisplayLists

bug:12581401
bug:12758460

DisplayLists of drawables aren't being cleared out correctly, and will
incorrectly store state across configuration changes. Disable them
temporarily until this is fixed.

Change-Id: Ic09f0674d30476127316cfb4ffe45eb34cc15aa0
diff --git a/graphics/java/android/graphics/drawable/Drawable.java b/graphics/java/android/graphics/drawable/Drawable.java
index cfb1983..2ec4284 100644
--- a/graphics/java/android/graphics/drawable/Drawable.java
+++ b/graphics/java/android/graphics/drawable/Drawable.java
@@ -156,7 +156,7 @@
      * @param canvas The canvas to draw into
      */
     public void draw(Canvas canvas) {
-        if (canvas != null && canvas.isHardwareAccelerated()) {
+        if (canvas != null && canvas.isHardwareAccelerated() && false) { // temporarily disabled
             final HardwareCanvas hardwareCanvas = (HardwareCanvas) canvas;
             final DisplayList displayList = getDisplayList(hardwareCanvas);
             if (displayList != null) {