Added RenderView.DocumentHasImages query method

content/public/browser/render_view_host.h

Index: content/public/browser/render_view_host.h
diff --git a/content/public/browser/render_view_host.h b/content/public/browser/render_view_host.h
index 14226ea7e429fe96ed6637818cd98e5d5e3af83e..57b2988fbdd7d3085ca1d30e69f5f028baf33012 100644
--- a/content/public/browser/render_view_host.h
+++ b/content/public/browser/render_view_host.h
@@ -268,6 +268,13 @@ class CONTENT_EXPORT RenderViewHost : virtual public RenderWidgetHost {
   // Passes a list of Webkit preferences to the renderer.
   virtual void UpdateWebkitPreferences(
       const webkit_glue::WebPreferences& prefs) = 0;
+
+  // Determine whether or not the document has any image elements. The returned
+  // int is a unique id for the request.  When the result is received from the
+  // renderer, the NOTIFICATION_DOCUMENT_HAS_IMAGES_RESPONSE notification is
+  // sent with a pair<int, bool> where the int is the unique id and the bool is
+  // the result of the call.
+  virtual int DocumentHasImages() = 0;
 };
 
 }  // namespace content