Stop disabling force_compositing_mode for background RenderViews.

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index 411d102a3aa0fa7d9e6f1afc645171d020f8a7e9..8d60a5bf2221b53035de8db5c79fe15d1f3f503a 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -265,7 +265,8 @@ class CONTENT_EXPORT RenderWidget
   RenderWidget(blink::WebPopupType popup_type,
                const blink::WebScreenInfo& screen_info,
                bool swapped_out,
-               bool hidden);
+               bool hidden,
+               bool background);
 
   virtual ~RenderWidget();
 
@@ -620,6 +621,9 @@ class CONTENT_EXPORT RenderWidget
   // Indicates that we shouldn't bother generated paint events.
   bool is_hidden_;
 
+  // Indeicates that we run in the background and are never visible.

[jam, 2014/04/10 20:27:48]

nit: spelling

[danakj, 2014/04/10 20:37:12]

Done.

+  bool is_background_;
+
   // Indicates that we are in fullscreen mode.
   bool is_fullscreen_;