Replace overdraw_bottom_height with top_controls_layout_height.

cc/layers/layer_impl.h

 // Copyright 2011 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_LAYERS_LAYER_IMPL_H_
 #define CC_LAYERS_LAYER_IMPL_H_
 
 #include <set>
 #include <string>
 
@@ skipping 342 matching lines @@
   }
   int num_unclipped_descendants() const {
     return draw_properties_.num_unclipped_descendants;
   }
 
   // The client should be responsible for setting bounds, content bounds and
   // contents scale to appropriate values. LayerImpl doesn't calculate any of
   // them from the other values.
 
   void SetBounds(const gfx::Size& bounds);
-  void SetTemporaryImplBounds(const gfx::SizeF& bounds);
   gfx::Size bounds() const;
-  gfx::Vector2dF BoundsDelta() const {
-    return gfx::Vector2dF(temporary_impl_bounds_.width() - bounds_.width(),
-                          temporary_impl_bounds_.height() - bounds_.height());
-  }
+  void SetBoundsDelta(const gfx::Vector2dF& bounds_delta);
+  gfx::Vector2dF bounds_delta() const { return bounds_delta_; }
 
   void SetContentBounds(const gfx::Size& content_bounds);
   gfx::Size content_bounds() const { return draw_properties_.content_bounds; }
 
   float contents_scale_x() const { return draw_properties_.contents_scale_x; }
   float contents_scale_y() const { return draw_properties_.contents_scale_y; }
   void SetContentsScale(float contents_scale_x, float contents_scale_y);
 
   void SetScrollOffsetDelegate(ScrollOffsetDelegate* scroll_offset_delegate);
   bool IsExternalFlingActive() const;
@@ skipping 219 matching lines @@
   int mask_layer_id_;
   scoped_ptr<LayerImpl> mask_layer_;
   int replica_layer_id_;  // ditto
   scoped_ptr<LayerImpl> replica_layer_;
   int layer_id_;
   LayerTreeImpl* layer_tree_impl_;
 
   // Properties synchronized from the associated Layer.
   gfx::Point3F transform_origin_;
   gfx::Size bounds_;
-  gfx::SizeF temporary_impl_bounds_;
+  gfx::Vector2dF bounds_delta_;
   gfx::Vector2d scroll_offset_;
   ScrollOffsetDelegate* scroll_offset_delegate_;
   LayerImpl* scroll_clip_layer_;
   bool scrollable_ : 1;
   bool should_scroll_on_main_thread_ : 1;
   bool have_wheel_event_handlers_ : 1;
   bool have_scroll_event_handlers_ : 1;
   bool user_scrollable_horizontal_ : 1;
   bool user_scrollable_vertical_ : 1;
   bool stacking_order_changed_ : 1;
@@ skipping 85 matching lines @@
   DrawProperties<LayerImpl> draw_properties_;
 
   scoped_refptr<base::debug::ConvertableToTraceFormat> debug_info_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_IMPL_H_