Pass load events from prerenders to launching elements.

chrome/browser/prerender/prerender_contents.cc

Index: chrome/browser/prerender/prerender_contents.cc
diff --git a/chrome/browser/prerender/prerender_contents.cc b/chrome/browser/prerender/prerender_contents.cc
index 22165b101b75dbabb2e29e7074a82727001f3af9..4815dc53379fdb26f4ee07567b68a329abf37a92 100644
--- a/chrome/browser/prerender/prerender_contents.cc
+++ b/chrome/browser/prerender/prerender_contents.cc
@@ -140,6 +140,10 @@ class PrerenderContents::WebContentsDelegateImpl
   PrerenderContents* prerender_contents_;
 };
 
+void PrerenderContents::Observer::OnPrerenderStopLoading(
+    PrerenderContents* contents) {
+}
+
 void PrerenderContents::Observer::OnPrerenderAddAlias(
     PrerenderContents* contents,
     const GURL& alias_url) {
@@ -467,6 +471,11 @@ void PrerenderContents::NotifyPrerenderStart() {
   FOR_EACH_OBSERVER(Observer, observer_list_, OnPrerenderStart(this));
 }
 
+void PrerenderContents::NotifyPrerenderStopLoading() {
+  DCHECK_EQ(FINAL_STATUS_MAX, final_status_);

[gavinp, 2013/01/03 17:20:10]

This simply isn't always true.

[mmenke, 2013/01/03 17:23:47]

My understanding of the world will never be the same, due to this earth
shattering revelation.

+  FOR_EACH_OBSERVER(Observer, observer_list_, OnPrerenderStopLoading(this));
+}
+
 void PrerenderContents::NotifyPrerenderStop() {
   DCHECK_NE(FINAL_STATUS_MAX, final_status_);
   FOR_EACH_OBSERVER(Observer, observer_list_, OnPrerenderStop(this));
@@ -541,6 +550,7 @@ void PrerenderContents::RenderViewGone(base::TerminationStatus status) {
 void PrerenderContents::DidStopLoading(
     content::RenderViewHost* render_view_host) {
   has_stopped_loading_ = true;
+  NotifyPrerenderStopLoading();
 }
 
 void PrerenderContents::DidStartProvisionalLoadForFrame(