[NoStatePrefetch] Kill renderer after preload scanning

chrome/renderer/prerender/prerender_helper.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_
 #define CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/time/time.h"
@@ skipping 17 matching lines @@
   explicit PrerenderHelper(content::RenderFrame* sub_frame);
 
   ~PrerenderHelper() override;
 
   // Returns true if |render_view| is currently prerendering.
   static bool IsPrerendering(const content::RenderFrame* render_frame);
 
   static PrerenderMode GetPrerenderMode(
       const content::RenderFrame* render_frame);
 
+  // Sends an IPC to notify that the prefether requested the last resource it
+  // could find.
+  static void SendPrefetchFinished(content::RenderFrame* render_frame);
+
  private:
   // RenderFrameObserver implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
   void OnDestruct() override;
 
   void OnSetIsPrerendering(PrerenderMode mode);
 
   PrerenderMode prerender_mode_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderHelper);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_