Plumb an overscroll callback form the compositor to the Android UI thread.

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 14 matching lines @@
 #include "content/port/common/input_event_ack_state.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/common/page_zoom.h"
 #include "ipc/ipc_listener.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/native_widget_types.h"
 
 class WebCursor;
 struct AcceleratedSurfaceMsg_BufferPresented_Params;
 struct ViewHostMsg_UpdateRect_Params;
+struct ViewHostMsg_UpdateFrameInfo_Params;
 struct ViewHostMsg_TextInputState_Params;
 struct ViewHostMsg_BeginSmoothScroll_Params;
 
 namespace base {
 class TimeTicks;
 }
 
 namespace cc {
 class CompositorFrame;
 }
@@ skipping 551 matching lines @@
                                         int32 height,
                                         uint64 mach_port);
   void OnAcceleratedSurfaceSetTransportDIB(gfx::PluginWindowHandle window,
                                            int32 width,
                                            int32 height,
                                            TransportDIB::Handle transport_dib);
   void OnAcceleratedSurfaceBuffersSwapped(gfx::PluginWindowHandle window,
                                           uint64 surface_handle);
 #endif
 #if defined(OS_ANDROID)
-  void OnUpdateFrameInfo(const gfx::Vector2d& scroll_offset,
-                         float page_scale_factor,
-                         float min_page_scale_factor,
-                         float max_page_scale_factor,
-                         const gfx::Size& content_size);
+  void OnUpdateFrameInfo(const ViewHostMsg_UpdateFrameInfo_Params& params);
 #endif
 #if defined(TOOLKIT_GTK)
   void OnCreatePluginContainer(gfx::PluginWindowHandle id);
   void OnDestroyPluginContainer(gfx::PluginWindowHandle id);
 #endif
 #if defined(OS_WIN)
   void OnWindowlessPluginDummyWindowCreated(
       gfx::NativeViewId dummy_activation_window);
   void OnWindowlessPluginDummyWindowDestroyed(
       gfx::NativeViewId dummy_activation_window);
@@ skipping 253 matching lines @@
 #if defined(OS_WIN)
   std::list<HWND> dummy_windows_for_activation_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_