Pass load events from prerenders to launching elements.

chrome/browser/prerender/prerender_handle.h

Index: chrome/browser/prerender/prerender_handle.h
diff --git a/chrome/browser/prerender/prerender_handle.h b/chrome/browser/prerender/prerender_handle.h
index 156b92dd12e3aa5955503a6f364e6fa09389822a..c0dc0d864985f5691abde509f8e3747e544bb865 100644
--- a/chrome/browser/prerender/prerender_handle.h
+++ b/chrome/browser/prerender/prerender_handle.h
@@ -35,6 +35,9 @@ class PrerenderHandle : public base::NonThreadSafe,
     // Signals that the prerender has started running.
     virtual void OnPrerenderStart(PrerenderHandle* handle) = 0;
 
+    // Signals that the prerender has had its load event.
+    virtual void OnPrerenderStopLoading(PrerenderHandle* handle) = 0;
+
     // Signals that the prerender has stopped running.
     virtual void OnPrerenderStop(PrerenderHandle* handle) = 0;
 
@@ -80,6 +83,8 @@ class PrerenderHandle : public base::NonThreadSafe,
 
   // From PrerenderContents::Observer:
   virtual void OnPrerenderStart(PrerenderContents* prerender_contents) OVERRIDE;
+  virtual void OnPrerenderStopLoading(PrerenderContents* prerender_contents)
+      OVERRIDE;
   virtual void OnPrerenderStop(PrerenderContents* prerender_contents) OVERRIDE;
   virtual void OnPrerenderAddAlias(PrerenderContents* prerender_contents,
                                    const GURL& alias_url) OVERRIDE;