CC: Decouple tile-grid-size from tile-size.

cc/resources/picture_pile_base.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_RESOURCES_PICTURE_PILE_BASE_H_
 #define CC_RESOURCES_PICTURE_PILE_BASE_H_
 
 #include <bitset>
 #include <list>
 #include <utility>
@@ skipping 47 matching lines @@
   bool is_mask() const { return is_mask_; }
 
   static void ComputeTileGridInfo(const gfx::Size& tile_grid_size,
                                   SkTileGridFactory::TileGridInfo* info);
 
   void SetTileGridSize(const gfx::Size& tile_grid_size);
   TilingData& tiling() { return tiling_; }
 
   void AsValueInto(base::debug::TracedValue* array) const;
 
+  SkTileGridFactory::TileGridInfo GetTileGridInfoForTesting() const {
+    return tile_grid_info_;
+  }
+
  protected:
   class CC_EXPORT PictureInfo {
    public:
     enum {
       INVALIDATION_FRAMES_TRACKED = 32
     };
 
     PictureInfo();
     ~PictureInfo();
 
@@ skipping 54 matching lines @@
  private:
   void SetBufferPixels(int buffer_pixels);
 
   friend class base::RefCounted<PicturePileBase>;
   DISALLOW_COPY_AND_ASSIGN(PicturePileBase);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PICTURE_PILE_BASE_H_