Replace extensions::ScopedPersistent with v8::UniquePersistent.

chrome/renderer/extensions/chrome_v8_context.h

 // 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.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
 #define CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "extensions/common/features/feature.h"
 #include "extensions/renderer/module_system.h"
 #include "extensions/renderer/request_sender.h"
 #include "extensions/renderer/safe_builtins.h"
-#include "extensions/renderer/scoped_persistent.h"
 #include "extensions/renderer/script_context.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 class WebFrame;
 }
 
 namespace content {
 class RenderView;
 }
@@ skipping 11 matching lines @@
                   const Extension* effective_extension,
                   Feature::Context effective_context_type);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ChromeV8Context);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_