Some optimizations.

- Don't try to create a thumbnail bitmap on the client side.  This
  wastes 64k, and isn't needed since we are doing screenshots.
- Optimize View to put all of the callback pointers out of line.
  Added a couple new APIs so these don't need to be protected/public.
- Lazily create ViewGroup's cache paint.
- Change FrameworkPerf app to not use HW accel drawing, to give better
  comparison with GB.

Change-Id: Iec56d02459820d74a4cc9c7ec9c1856563c82c7b

Author: Dianne Hackborn

api/current.txt

@@ -22849,6 +22849,7 @@ package android.view {
     method public void buildDrawingCache();
     method public void buildDrawingCache(boolean);
     method public void buildLayer();
+    method public boolean callOnClick();
     method public boolean canScrollHorizontally(int);
     method public boolean canScrollVertically(int);
     method public void cancelLongPress();
@@ -23000,6 +23001,7 @@ package android.view {
     method public float getY();
     method public boolean hasFocus();
     method public boolean hasFocusable();
+    method public boolean hasOnClickListeners();
     method public boolean hasWindowFocus();
     method public static android.view.View inflate(android.content.Context, int, android.view.ViewGroup);
     method protected void initializeFadingEdge(android.content.res.TypedArray);

core/java/android/app/ActivityThread.java

@@ -2769,7 +2769,9 @@ private void performStopActivityInner(ActivityClientRecord r,
             if (info != null) {
                 try {
                     // First create a thumbnail for the activity...
-                    info.thumbnail = createThumbnailBitmap(r);
+                    // For now, don't create the thumbnail here; we are
+                    // doing that by doing a screen snapshot.
+                    info.thumbnail = null; //createThumbnailBitmap(r);
                     info.description = r.activity.onCreateDescription();
                 } catch (Exception e) {
                     if (!mInstrumentation.onException(r.activity, e)) {