Move the "extension" namespace from extension_api.json into extension_api_extension.json.

chrome/common/extensions/api/extension_api.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_COMMON_EXTENSIONS_API_EXTENSION_API_H_
 #define CHROME_COMMON_EXTENSIONS_API_EXTENSION_API_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 namespace extensions {
 
-// C++ Wrapper for the extension_api.json file.
+// C++ Wrapper for the JSON API definitions in chrome/common/extensions/api/.
 class ExtensionAPI {
  public:
   // Returns the single instance of this class.
   static ExtensionAPI* GetInstance();
 
   const base::ListValue* value() const {
     return value_.get();
   }
 
   // Returns ture if |name| is a privileged API. Privileged APIs can only be
@@ skipping 24 matching lines @@
   static ExtensionAPI* instance_;
 
   scoped_ptr<base::ListValue> value_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionAPI);
 };
 
 }  // extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_API_EXTENSION_API_H_