Remove scoped_refptr::release which is confusing and causes leaks.

content/renderer/render_widget_fullscreen.h

Index: content/renderer/render_widget_fullscreen.h
diff --git a/content/renderer/render_widget_fullscreen.h b/content/renderer/render_widget_fullscreen.h
index fa2e1a6cb3e9e078e98abb3108049346de5c4e31..5570cf852973ad5a24713c580964e962f47712d6 100644
--- a/content/renderer/render_widget_fullscreen.h
+++ b/content/renderer/render_widget_fullscreen.h
@@ -14,10 +14,6 @@ namespace content {
 // TODO(boliu): Override non-supported methods with no-op? eg setWindowRect().
 class RenderWidgetFullscreen : public RenderWidget {
  public:
-  // Creates a new RenderWidget.  The opener_id is the routing ID of the
-  // RenderView that this widget lives inside.
-  static RenderWidgetFullscreen* Create(int32 opener_id);
-
   virtual void show(WebKit::WebNavigationPolicy);
 
  protected: