Restore resize throttling on Chrome OS

content/browser/renderer_host/render_widget_host_impl.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_impl.h"
 
 #include <math.h>
 #include <set>
 #include <utility>
 
@@ skipping 563 matching lines @@
 }
 
 void RenderWidgetHostImpl::WasResized() {
   // Skip if the |delegate_| has already been detached because
   // it's web contents is being deleted.
   if (resize_ack_pending_ || !process_->HasConnection() || !view_ ||
       !renderer_initialized_ || should_auto_resize_ || !delegate_) {
     return;
   }
 
-  gfx::Rect view_bounds = view_->GetViewBounds();
-  gfx::Size new_size(view_bounds.size());
+  gfx::Size new_size(view_->GetRequestedRendererSize());
 
   gfx::Size old_physical_backing_size = physical_backing_size_;
   physical_backing_size_ = view_->GetPhysicalBackingSize();
   bool was_fullscreen = is_fullscreen_;
   is_fullscreen_ = IsFullscreen();
   float old_overdraw_bottom_height = overdraw_bottom_height_;
   overdraw_bottom_height_ = view_->GetOverdrawBottomHeight();
   gfx::Size old_visible_viewport_size = visible_viewport_size_;
   visible_viewport_size_ = view_->GetVisibleViewportSize();
 
@@ skipping 1724 matching lines @@
   }
 }
 
 SkBitmap::Config RenderWidgetHostImpl::PreferredReadbackFormat() {
   if (view_)
     return view_->PreferredReadbackFormat();
   return SkBitmap::kARGB_8888_Config;
 }
 
 }  // namespace content