Remove two unnecessary params in ViewHostMsg_UpdateRect_Params

content/browser/renderer_host/render_widget_host_view_aura.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 625 matching lines @@
         aura::client::GetScreenPositionClient(root);
     if (screen_position_client) {
       screen_position_client->ConvertPointFromScreen(
           window_->parent(), &relative_origin);
     }
   }
 
   InternalSetBounds(gfx::Rect(relative_origin, rect.size()));
 }
 
+gfx::Vector2dF RenderWidgetHostViewAura::GetLastScrollOffset() const {
+  return last_scroll_offset_;
+}
+
 gfx::NativeView RenderWidgetHostViewAura::GetNativeView() const {
   return window_;
 }
 
 gfx::NativeViewId RenderWidgetHostViewAura::GetNativeViewId() const {
 #if defined(OS_WIN)
   aura::WindowTreeHost* host = window_->GetHost();
   if (host)
     return reinterpret_cast<gfx::NativeViewId>(host->GetAcceleratedWidget());
 #endif
@@ skipping 359 matching lines @@
 void RenderWidgetHostViewAura::AcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params_in_pixel,
     int gpu_host_id) {
   // Oldschool composited mode is no longer supported.
 }
 
 void RenderWidgetHostViewAura::OnSwapCompositorFrame(
     uint32 output_surface_id,
     scoped_ptr<cc::CompositorFrame> frame) {
   TRACE_EVENT0("content", "RenderWidgetHostViewAura::OnSwapCompositorFrame");
+
+  last_scroll_offset_ = frame->metadata.root_scroll_offset;
   if (frame->delegated_frame_data) {
     delegated_frame_host_->SwapDelegatedFrame(
         output_surface_id,
         frame->delegated_frame_data.Pass(),
         frame->metadata.device_scale_factor,
         frame->metadata.latency_info);
     return;
   }
 
   if (frame->software_frame_data) {
@@ skipping 1453 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content