Modifying the behavior of render_pictures --validate to test the effect of bbh.

tools/PictureRenderer.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef PictureRenderer_DEFINED
 #define PictureRenderer_DEFINED
 
@@ skipping 153 matching lines @@
 
     void setDrawFilters(DrawFilterFlags const * const filters, const SkString& configName) {
         memcpy(fDrawFilters, filters, sizeof(fDrawFilters));
         fDrawFiltersConfig = configName;
     }
 
     void setBBoxHierarchyType(BBoxHierarchyType bbhType) {
         fBBoxHierarchyType = bbhType;
     }
 
+    BBoxHierarchyType getBBoxHierarchyType() { return fBBoxHierarchyType; }
+
     void setGridSize(int width, int height) {
         fGridInfo.fTileInterval.set(width, height);
     }
 
     bool isUsingBitmapDevice() {
         return kBitmap_DeviceType == fDeviceType;
     }
 
     virtual SkString getPerIterTimeFormat() { return SkString("%.2f"); }
 
@@ skipping 348 matching lines @@
 
     typedef PictureRenderer INHERITED;
 };
 
 extern PictureRenderer* CreateGatherPixelRefsRenderer();
 extern PictureRenderer* CreatePictureCloneRenderer();
 
 }
 
 #endif  // PictureRenderer_DEFINED