Restore resize throttling on Chrome OS

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index c6e3c613e1ba86c718d00db55c38d278aed8482c..28a2fcd5fb29ecdd14b104dce5dc4bb5484aa9e2 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -398,7 +398,7 @@ gfx::Size RenderWidgetHostViewBase::GetPhysicalBackingSize() const {
   gfx::NativeView view = GetNativeView();
   gfx::Display display =
       gfx::Screen::GetScreenFor(view)->GetDisplayNearestWindow(view);
-  return gfx::ToCeiledSize(gfx::ScaleSize(GetViewBounds().size(),
+  return gfx::ToCeiledSize(gfx::ScaleSize(GetRequestedRendererSize(),

[danakj, 2014/05/20 19:28:56]

Hmmm, should we also have a RequestedRendererDeviceScale and store that inside
the resize lock? I wonder if this is an existing DSF race?

                                           display.device_scale_factor()));
 }
 
@@ -415,6 +415,10 @@ void RenderWidgetHostViewBase::SelectionChanged(const base::string16& text,
   selection_range_.set_end(range.end());
 }
 
+gfx::Size RenderWidgetHostViewBase::GetRequestedRendererSize() const {
+  return GetViewBounds().size();
+}
+
 ui::TextInputClient* RenderWidgetHostViewBase::GetTextInputClient() {
   NOTREACHED();
   return NULL;