Made Blink aware of top controls offset (Chromium-side)

cc/trees/layer_tree_host_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_TREES_LAYER_TREE_HOST_IMPL_H_
 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_
 
 #include <list>
 #include <set>
 #include <string>
@@ skipping 141 matching lines @@
   virtual void SetNeedsAnimate() OVERRIDE;
   virtual bool IsCurrentlyScrollingLayerAt(
       const gfx::Point& viewport_point,
       InputHandler::ScrollInputType type) OVERRIDE;
   virtual bool HaveTouchEventHandlersAt(
       const gfx::Point& viewport_port) OVERRIDE;
   virtual scoped_ptr<SwapPromiseMonitor> CreateLatencyInfoSwapPromiseMonitor(
       ui::LatencyInfo* latency) OVERRIDE;
 
   // TopControlsManagerClient implementation.
+  virtual void SetControlsTopOffset(float offset) OVERRIDE;
+  virtual float ControlsTopOffset() const OVERRIDE;
   virtual void DidChangeTopControlsPosition() OVERRIDE;
   virtual bool HaveRootScrollLayer() const OVERRIDE;
 
   struct CC_EXPORT FrameData : public RenderPassSink {
     FrameData();
     virtual ~FrameData();
     void AsValueInto(base::debug::TracedValue* value) const;
 
     std::vector<gfx::Rect> occluding_screen_space_rects;
     std::vector<gfx::Rect> non_occluding_screen_space_rects;
@@ skipping 163 matching lines @@
   void SetNeedsRedraw();
 
   ManagedMemoryPolicy ActualManagedMemoryPolicy() const;
 
   size_t memory_allocation_limit_bytes() const;
   int memory_allocation_priority_cutoff() const;
 
   void SetViewportSize(const gfx::Size& device_viewport_size);
   gfx::Size device_viewport_size() const { return device_viewport_size_; }
 
-  void SetTopControlsLayoutHeight(float top_controls_layout_height);
-  float top_controls_layout_height() const {
-    return top_controls_layout_height_;
-  }
-
   void SetOverhangUIResource(UIResourceId overhang_ui_resource_id,
                              const gfx::Size& overhang_ui_resource_size);
 
   void SetDeviceScaleFactor(float device_scale_factor);
   float device_scale_factor() const { return device_scale_factor_; }
 
   const gfx::Transform& DrawTransform() const;
 
   scoped_ptr<ScrollAndScaleSet> ProcessScrollDeltas();
 
@@ skipping 296 matching lines @@
   gfx::Size device_viewport_size_;
 
   // Conversion factor from CSS pixels to physical pixels when
   // pageScaleFactor=1.
   float device_scale_factor_;
 
   // UI resource to use for drawing overhang gutters.
   UIResourceId overhang_ui_resource_id_;
   gfx::Size overhang_ui_resource_size_;
 
-  // Height of the top controls as known by Blink.
-  float top_controls_layout_height_;
-
   // Optional top-level constraints that can be set by the OutputSurface.
   // - external_transform_ applies a transform above the root layer
   // - external_viewport_ is used DrawProperties, tile management and
   // glViewport/window projection matrix.
   // - external_clip_ specifies a top-level clip rect
   // - viewport_rect_for_tile_priority_ is the rect in view space used for
   // tiling priority.
   gfx::Transform external_transform_;
   gfx::Rect external_viewport_;
   gfx::Rect external_clip_;
@@ skipping 26 matching lines @@
 
   std::vector<PictureLayerImpl*> picture_layers_;
   std::vector<PictureLayerImpl::Pair> picture_layer_pairs_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IMPL_H_