Remove two unnecessary params in ViewHostMsg_UpdateRect_Params

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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.
 
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/view_messages.h"
@@ skipping 52 matching lines @@
   return !host_->is_hidden();
 }
 
 gfx::Rect RenderWidgetHostViewChildFrame::GetViewBounds() const {
   gfx::Rect rect;
   if (frame_connector_)
     rect = frame_connector_->ChildFrameRect();
   return rect;
 }
 
+gfx::Vector2dF RenderWidgetHostViewChildFrame::GetLastScrollOffset() const {
+  return last_scroll_offset_;
+}
+
 gfx::NativeView RenderWidgetHostViewChildFrame::GetNativeView() const {
   NOTREACHED();
   return NULL;
 }
 
 gfx::NativeViewId RenderWidgetHostViewChildFrame::GetNativeViewId() const {
   NOTREACHED();
   return 0;
 }
 
@@ skipping 124 matching lines @@
 }
 
 void RenderWidgetHostViewChildFrame::AcceleratedSurfacePostSubBuffer(
     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
     int gpu_host_id) {
 }
 
 void RenderWidgetHostViewChildFrame::OnSwapCompositorFrame(
       uint32 output_surface_id,
       scoped_ptr<cc::CompositorFrame> frame) {
+  last_scroll_offset_ = frame->metadata.root_scroll_offset;
   if (frame_connector_) {
     frame_connector_->ChildFrameCompositorFrameSwapped(
         output_surface_id,
         host_->GetProcess()->GetID(),
         host_->GetRoutingID(),
         frame.Pass());
   }
 }
 
 void RenderWidgetHostViewChildFrame::GetScreenInfo(
@@ skipping 108 matching lines @@
 
 BrowserAccessibilityManager*
 RenderWidgetHostViewChildFrame::CreateBrowserAccessibilityManager(
     BrowserAccessibilityDelegate* delegate) {
   // This eventually needs to be implemented for cross-process iframes.
   // http://crbug.com/368298
   return NULL;
 }
 
 }  // namespace content