cc: Remove and Create the correct tiles when resizing live tiles rect

cc/base/tiling_data.h

 // Copyright 2010 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_BASE_TILING_DATA_H_
 #define CC_BASE_TILING_DATA_H_
 
 #include <utility>
 
 #include "base/basictypes.h"
@@ skipping 34 matching lines @@
   // Return the tile index whose non-border texels include src_position.
   int TileXIndexFromSrcCoord(int src_position) const;
   int TileYIndexFromSrcCoord(int src_position) const;
   // Return the lowest tile index whose border texels include src_position.
   int FirstBorderTileXIndexFromSrcCoord(int src_position) const;
   int FirstBorderTileYIndexFromSrcCoord(int src_position) const;
   // Return the highest tile index whose border texels include src_position.
   int LastBorderTileXIndexFromSrcCoord(int src_position) const;
   int LastBorderTileYIndexFromSrcCoord(int src_position) const;
 
-  gfx::Rect ExpandRectIgnoringBordersToTileBoundsWithBorders(
-      const gfx::Rect& rect) const;
+  gfx::Rect ExpandRectIgnoringBordersToTileBounds(const gfx::Rect& rect) const;
   gfx::Rect ExpandRectToTileBounds(const gfx::Rect& rect) const;
 
   gfx::Rect TileBounds(int i, int j) const;
   gfx::Rect TileBoundsWithBorder(int i, int j) const;
   int TilePositionX(int x_index) const;
   int TilePositionY(int y_index) const;
   int TileSizeX(int x_index) const;
   int TileSizeY(int y_index) const;
 
   // Difference between TileBound's and TileBoundWithBorder's origin().
@@ skipping 29 matching lines @@
              const gfx::Rect& consider_rect,
              bool include_borders);
     Iterator& operator++();
 
    private:
     int left_;
     int right_;
     int bottom_;
   };
 
-  // Iterate through all indices whose bounds + border intersect with
-  // |consider| but which also do not intersect with |ignore|.
+  // Iterate through all indices whose bounds (not including borders) intersect
+  // with |consider| but which also do not intersect with |ignore|.
   class CC_EXPORT DifferenceIterator : public BaseIterator {
    public:
-    DifferenceIterator(
-      const TilingData* tiling_data,
-      const gfx::Rect& consider_rect,
-      const gfx::Rect& ignore_rect);
+    DifferenceIterator(const TilingData* tiling_data,
+                       const gfx::Rect& consider_rect,
+                       const gfx::Rect& ignore_rect);
     DifferenceIterator& operator++();
 
    private:
     bool in_ignore_rect() const {
      return index_x_ >= ignore_left_ && index_x_ <= ignore_right_ &&
        index_y_ >= ignore_top_ && index_y_ <= ignore_bottom_;
     }
 
     int consider_left_;
     int consider_top_;
@@ skipping 75 matching lines @@
   int border_texels_;
 
   // These are computed values.
   int num_tiles_x_;
   int num_tiles_y_;
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_TILING_DATA_H_