GTTF: Add missing virtual destructors.

cc/picture_layer_tiling.h

 // 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_PICTURE_LAYER_TILING_H_
 #define CC_PICTURE_LAYER_TILING_H_
 
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/cc_export.h"
 #include "cc/hash_pair.h"
 #include "cc/region.h"
 #include "cc/tile.h"
 #include "cc/tile_priority.h"
 #include "cc/tiling_data.h"
 #include "ui/gfx/rect.h"
 
 namespace cc {
 
 class PictureLayerTiling;
 
 class PictureLayerTilingClient {
   public:
+   virtual ~PictureLayerTilingClient() { }

[jamesr, 2013/02/01 19:30:05]

protected

+
    // Create a tile at the given content_rect (in the contents scale of the
    // tiling) This might return null if the client cannot create such a tile.
    virtual scoped_refptr<Tile> CreateTile(
      PictureLayerTiling* tiling,
      gfx::Rect content_rect) = 0;
    virtual void UpdatePile(Tile* tile) = 0;
 };
 
 class CC_EXPORT PictureLayerTiling {
  public:
@@ skipping 115 matching lines @@
   TileResolution resolution_;
   int last_source_frame_number_;
   double last_impl_frame_time_;
 
   friend class Iterator;
 };
 
 }  // namespace cc
 
 #endif  // CC_PICTURE_LAYER_TILING_H_