Remove unused / unnecessary stuff from Instant.

chrome/browser/instant/instant_unload_handler.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/instant/instant_unload_handler.h"
 
 #include <algorithm>
 
 #include "base/message_loop.h"
 #include "chrome/browser/ui/browser_navigator.h"
@@ skipping 32 matching lines @@
   }
 
  private:
   InstantUnloadHandler* const handler_;
   scoped_ptr<TabContents> tab_contents_;
 
   // The index |tab_contents_| was originally at. If we add the tab back we add
   // it at this index.
   const int index_;
 
-  DISALLOW_IMPLICIT_CONSTRUCTORS(WebContentsDelegateImpl);
+  DISALLOW_COPY_AND_ASSIGN(WebContentsDelegateImpl);
 };
 
 InstantUnloadHandler::InstantUnloadHandler(Browser* browser)
     : browser_(browser) {
 }
 
 InstantUnloadHandler::~InstantUnloadHandler() {
 }
 
 void InstantUnloadHandler::RunUnloadListenersOrDestroy(TabContents* tab,
@@ skipping 30 matching lines @@
 void InstantUnloadHandler::Destroy(WebContentsDelegateImpl* delegate) {
   ScopedVector<WebContentsDelegateImpl>::iterator i =
       std::find(delegates_.begin(), delegates_.end(), delegate);
   DCHECK(i != delegates_.end());
 
   // The delegate's method is a caller on the stack, so schedule the deletion
   // for later.
   delegates_.weak_erase(i);
   MessageLoop::current()->DeleteSoon(FROM_HERE, delegate);
 }