cc: Don't clip tile priority visible rect to content bounds.

cc/resources/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_RESOURCES_PICTURE_LAYER_TILING_H_
 #define CC_RESOURCES_PICTURE_LAYER_TILING_H_
 
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 219 matching lines @@
     int top_;
     int right_;
     int bottom_;
 
     friend class PictureLayerTiling;
   };
 
   void Reset();
 
   void UpdateTilePriorities(WhichTree tree,
-                            const gfx::Rect& visible_layer_rect,
+                            const gfx::Rect& viewport_in_layer_space,
                             float ideal_contents_scale,
                             double current_frame_time_in_seconds,
                             const Occlusion& occlusion_in_layer_space);
 
   // Copies the src_tree priority into the dst_tree priority for all tiles.
   // The src_tree priority is reset to the lowest priority possible.  This
   // also updates the pile on each tile to be the current client's pile.
   void DidBecomeActive();
 
   // Resets the active priority for all tiles in a tiling, when an active
@@ skipping 106 matching lines @@
 
  private:
   DISALLOW_ASSIGN(PictureLayerTiling);
 
   RectExpansionCache expansion_cache_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PICTURE_LAYER_TILING_H_