Revert "Revert of [NoStatePrefetch] Kill renderer after preload scanning (patchset #12 id:240001 of…

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 0d4407770d36e8cb2d26bc977d55f3d0e9abd934..54bde4d882822ce3812a8fb8a6b1587fa649ffb9 100644
--- a/chrome/browser/prerender/prerender_manager.h
+++ b/chrome/browser/prerender/prerender_manager.h
@@ -268,6 +268,11 @@ class PrerenderManager : public content::NotificationObserver,
   virtual PrerenderContents* GetPrerenderContentsForRoute(
       int child_id, int route_id) const;
 
+  // Returns the PrerenderContents object that is found in active prerenders to
+  // match the |render_process_id|. Otherwise returns a nullptr.
+  PrerenderContents* GetPrerenderContentsForProcess(
+      int render_process_id) const;
+
   // Returns a list of all WebContents being prerendered.
   std::vector<content::WebContents*> GetAllPrerenderingContents() const;