cc: Add PictureLayerTilingSet to manage PictureLayerTiling

cc/test/fake_picture_layer_tiling_client.h

Index: cc/test/fake_picture_layer_tiling_client.h
diff --git a/cc/test/fake_picture_layer_tiling_client.h b/cc/test/fake_picture_layer_tiling_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..ecadac0ea4a0ad519047cbf9cf95747d47139749
--- /dev/null
+++ b/cc/test/fake_picture_layer_tiling_client.h
@@ -0,0 +1,38 @@
+// Copyright 2012 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_TEST_FAKE_PICTURE_LAYER_TILING_CLIENT_H_
+#define CC_TEST_FAKE_PICTURE_LAYER_TILING_CLIENT_H_
+
+#include "cc/picture_layer_tiling.h"
+#include "cc/picture_pile.h"
+#include "cc/test/fake_tile_manager_client.h"
+#include "cc/tile.h"
+#include "cc/tile_manager.h"
+#include "ui/gfx/rect.h"
+
+namespace cc {
+
+class FakePictureLayerTilingClient : public PictureLayerTilingClient {
+ public:
+  FakePictureLayerTilingClient();
+  virtual ~FakePictureLayerTilingClient();
+
+  // PictureLayerTilingClient implementation.
+  virtual scoped_refptr<Tile> CreateTile(
+      PictureLayerTiling* tiling, gfx::Rect rect) OVERRIDE;
+
+  void SetTileSize(gfx::Size tile_size);
+  gfx::Size TileSize() const { return tile_size_; }
+
+ protected:
+  FakeTileManagerClient tile_manager_client_;
+  TileManager tile_manager_;
+  PicturePile pile_;
+  gfx::Size tile_size_;
+};
+
+}  // namespace cc
+
+#endif  // CC_TEST_FAKE_PICTURE_LAYER_TILING_CLIENT_H_