Revert of [NoStatePrefetch] Kill renderer after preload scanning

third_party/WebKit/Source/web/tests/PrerenderingTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 131 matching lines @@
   }
 
   void cancel(const WebPrerender& prerender) override {
     m_canceledPrerenders.append(prerender);
   }
 
   void abandon(const WebPrerender& prerender) override {
     m_abandonedPrerenders.append(prerender);
   }
 
-  void prefetchFinished() override {}
-
   Vector<WebPrerender> m_addedPrerenders;
   Vector<WebPrerender> m_canceledPrerenders;
   Vector<WebPrerender> m_abandonedPrerenders;
 };
 
 class PrerenderingTest : public testing::Test {
  public:
   ~PrerenderingTest() override {
     Platform::current()->getURLLoaderMockFactory()->unregisterAllURLs();
     WebCache::clear();
@@ skipping 300 matching lines @@
 
   WebPrerender relNextAndPrerender = prerendererClient()->releaseWebPrerender();
   EXPECT_EQ(toWebURL("http://rel-next-and-prerender.com/"),
             relNextAndPrerender.url());
   EXPECT_EQ(
       static_cast<unsigned>(PrerenderRelTypeNext | PrerenderRelTypePrerender),
       relNextAndPrerender.relTypes());
 }
 
 }  // namespace