| 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 6bd1a90b1b7dfc59bdf868966f7dfa373a500f59..a3899237f99e6ca7aab6c4ae809a271d4075e0d8 100644 | 
| --- a/content/browser/renderer_host/render_widget_host_view_base.cc | 
| +++ b/content/browser/renderer_host/render_widget_host_view_base.cc | 
| @@ -699,4 +699,8 @@ RenderWidgetHostViewBase::GetOrientationTypeForDesktop( | 
| void RenderWidgetHostViewBase::OnDidNavigateMainFrameToNewPage() { | 
| } | 
|  | 
| +uint32_t RenderWidgetHostViewBase::GetSurfaceIdNamespace() { | 
| +  return 0; | 
| +} | 
| + | 
| }  // namespace content | 
|  |