Implement SkPictureImageFilter bounds computation.

src/effects/SkPictureImageFilter.cpp

 /*
  * Copyright 2013 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPictureImageFilter.h"
 #include "SkDevice.h"
 #include "SkCanvas.h"
@@ skipping 74 matching lines @@
 
     canvas.translate(-SkIntToScalar(bounds.fLeft), -SkIntToScalar(bounds.fTop));
     canvas.concat(ctx.ctm());
     canvas.drawPicture(*fPicture);
 
     *result = device.get()->accessBitmap(false);
     offset->fX = bounds.fLeft;
     offset->fY = bounds.fTop;
     return true;
 }
+
+bool SkPictureImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
+                                          SkIRect* dst) const {
+    *dst = src;

[reed1, 2014/05/30 20:10:20]

Why are we not applying the CTM?

+    return true;
+}
+