Pass DomContentLoaded event from prerenders to launching elements.

chrome/browser/prerender/prerender_contents.h

Index: chrome/browser/prerender/prerender_contents.h
diff --git a/chrome/browser/prerender/prerender_contents.h b/chrome/browser/prerender/prerender_contents.h
index f67a142675d7706ef7bd7bfea7d169c5a6099c65..451ca65107da4e504307aff818c6868256705b2a 100644
--- a/chrome/browser/prerender/prerender_contents.h
+++ b/chrome/browser/prerender/prerender_contents.h
@@ -78,6 +78,9 @@ class PrerenderContents : public content::NotificationObserver,
     // Signals that the prerender has had its load event.
     virtual void OnPrerenderStopLoading(PrerenderContents* contents);
 
+    // Signals that the prerender has had its 'DOMContentLoaded' event.
+    virtual void OnPrerenderDomContentLoaded(PrerenderContents* contents);
+
     // Signals that the prerender has stopped running. A PrerenderContents with
     // an unset final status will always call OnPrerenderStop before being
     // destroyed.
@@ -202,6 +205,8 @@ class PrerenderContents : public content::NotificationObserver,
       content::RenderFrameHost* render_frame_host) OVERRIDE;
   virtual void DidStopLoading(
       content::RenderViewHost* render_view_host) OVERRIDE;
+  virtual void DocumentLoadedInFrame(
+      int64 frame_id, content::RenderViewHost* render_view_host) OVERRIDE;
   virtual void DidStartProvisionalLoadForFrame(
       int64 frame_id,
       int64 parent_frame_id,
@@ -312,6 +317,7 @@ class PrerenderContents : public content::NotificationObserver,
   // that NotifyPrerenderStop() also clears the observer list.
   void NotifyPrerenderStart();
   void NotifyPrerenderStopLoading();
+  void NotifyPrerenderDomContentLoaded();
   void NotifyPrerenderStop();
   void NotifyPrerenderCreatedMatchCompleteReplacement(
       PrerenderContents* replacement);