Browser plugin: Implement loadStart and loadAbort events

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index bfef213c7c8b1eb69706a526174cb929ac459d5d..3221230c7ea2c1e87b6d15ea8fb8d5af9f8618c9 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -82,6 +82,13 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsDelegate,
   }
 
   // WebContentsObserver implementation.
+  virtual void DidStartProvisionalLoadForFrame(
+      int64 frame_id,
+      bool is_main_frame,
+      const GURL& validated_url,
+      bool is_error_page,
+      RenderViewHost* render_view_host);
+
   virtual void DidCommitProvisionalLoadForFrame(
       int64 frame_id,
       bool is_main_frame,