Browser test for prerendering in general

chrome/browser/prerender/prerender_contents.h

Index: chrome/browser/prerender/prerender_contents.h
===================================================================
--- chrome/browser/prerender/prerender_contents.h	(revision 71995)
+++ chrome/browser/prerender/prerender_contents.h	(working copy)
@@ -36,6 +36,16 @@
                           public NotificationObserver,
                           public JavaScriptAppModalDialogDelegate {
  public:
+  // PrerenderContents::Create uses the currently registered Factory to create
+  // the PrerenderContents. Factory is intended for testing.
+  class Factory {
+   public:
+    virtual PrerenderContents* CreatePrerenderContents(
+        PrerenderManager* prerender_manager, Profile* profile, const GURL& url,
+        const std::vector<GURL>& alias_urls) = 0;
+    virtual ~Factory() {}
+  };
+
   PrerenderContents(PrerenderManager* prerender_manager, Profile* profile,
                     const GURL& url, const std::vector<GURL>& alias_urls);
   virtual ~PrerenderContents();