Added prerendering to omnibox.

chrome/browser/prerender/prerender_manager.h

Index: chrome/browser/prerender/prerender_manager.h
diff --git a/chrome/browser/prerender/prerender_manager.h b/chrome/browser/prerender/prerender_manager.h
index 616cb35a38763d59f5cf15392e03579993c0f9f1..80f37274d52c31bc4af40ac1f167b25e48653d86 100644
--- a/chrome/browser/prerender/prerender_manager.h
+++ b/chrome/browser/prerender/prerender_manager.h
@@ -88,6 +88,12 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
       const GURL& url,
       const GURL& referrer);
 
+  // Starts a prerender for |url| if valid. As the prerender request is coming
+  // from a source without a RenderViewHost (ie, the omnibox) we don't have a
+  // child or route id, or a referrer. This method uses sensible values for
+  // those.
+  bool AddPrerenderWithNoTag(const GURL& url);

[cbentzel, 2011/06/20 18:06:01]

Can you be consistent about the AddPreload/AddPrerender name? I'm fine with
moving to AddPrerender.

[dominich, 2011/06/20 18:40:00]

Done.

+
   // Destroy all preloads for the given child route id pair and assign a final
   // status to them.
   virtual void DestroyPreloadForChildRouteIdPair(