[NoStatePrefetch] Kill renderer after preload scanning

content/public/browser/render_process_host_observer.h

Index: content/public/browser/render_process_host_observer.h
diff --git a/content/public/browser/render_process_host_observer.h b/content/public/browser/render_process_host_observer.h
index 100bee675b3ddaccea92ac594c0fa1e13ec26f8d..fec9697a8a09e24317603787a45ece3407dcae20 100644
--- a/content/public/browser/render_process_host_observer.h
+++ b/content/public/browser/render_process_host_observer.h
@@ -56,6 +56,11 @@ class CONTENT_EXPORT RenderProcessHostObserver {
   // delete it.
   virtual void RenderProcessHostDestroyed(RenderProcessHost* host) {}
 
+  // This method is invoked when the resource prefetcher driven from this
+  // process has finished requesting subreqources. Currently a renderer process
+  // can run only one instance of resource prefetcher.
+  virtual void RenderProcessHostPrefetchFinished(RenderProcessHost* host) {}
+
  protected:
   virtual ~RenderProcessHostObserver() {}
 };