Plumb the partial swap though image transport.

content/browser/renderer_host/render_widget_host_view_mac.h

 // Copyright (c) 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #pragma once
 
 #if defined(__OBJC__)
 
@@ skipping 242 matching lines @@
       int32 height,
       uint64 io_surface_identifier) OVERRIDE;
   virtual void AcceleratedSurfaceSetTransportDIB(
       gfx::PluginWindowHandle window,
       int32 width,
       int32 height,
       TransportDIB::Handle transport_dib) OVERRIDE;
   virtual void AcceleratedSurfaceBuffersSwapped(
       const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
       int gpu_host_id) OVERRIDE;
+  virtual void AcceleratedSurfacePostSubBuffer(
+      const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
+      int gpu_host_id) OVERRIDE;
   virtual void GetScreenInfo(WebKit::WebScreenInfo* results) OVERRIDE;
   virtual gfx::Rect GetRootWindowBounds() OVERRIDE;
   virtual gfx::PluginWindowHandle GetCompositingSurface() OVERRIDE;
 
   // Returns |true| if a context menu is currently being shown.
   bool is_showing_context_menu() const { return is_showing_context_menu_; }
 
   void DrawAcceleratedSurfaceInstance(
       CGLContextObj context,
       gfx::PluginWindowHandle plugin_handle,
@@ skipping 25 matching lines @@
   const std::string& selected_text() const { return selected_text_; }
 
   void UpdateRootGpuViewVisibility(bool show_gpu_widget);
 
   // When rendering transitions from gpu to software, the gpu widget can't be
   // hidden until the software backing store has been updated. This method
   // checks if the GPU view needs to be hidden and hides it if necessary. It
   // should be called after the software backing store has been painted to.
   void HandleDelayedGpuViewHiding();
 
-  // This is called from the display link thread, and provides the GPU
-  // process a notion of how quickly the browser is able to keep up with it.
-  void AcknowledgeSwapBuffers(int renderer_id,
-                              int32 route_id,
-                              int gpu_host_id);
-
   // These member variables should be private, but the associated ObjC class
   // needs access to them and can't be made a friend.
 
   // The associated Model.  Can be NULL if Destroy() is called when
   // someone (other than superview) has retained |cocoa_view_|.
   RenderWidgetHost* render_widget_host_;
 
   // This is true when we are currently painting and thus should handle extra
   // paint requests by expanding the invalid rect rather than actually painting.
   bool about_to_validate_and_paint_;
@@ skipping 93 matching lines @@
 
 class RenderWidgetHostView;
 class RenderWidgetHost;
 
 namespace render_widget_host_view_mac {
 CONTENT_EXPORT RenderWidgetHostView* CreateRenderWidgetHostView(
     RenderWidgetHost* widget);
 }
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_