Move extensions bindings code out of //chrome

extensions/renderer/api_definitions_natives.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_API_DEFINITIONS_NATIVES_H_
-#define CHROME_RENDERER_EXTENSIONS_API_DEFINITIONS_NATIVES_H_
+#ifndef EXTENSIONS_RENDERER_API_DEFINITIONS_NATIVES_H_
+#define EXTENSIONS_RENDERER_API_DEFINITIONS_NATIVES_H_
 
-#include "chrome/renderer/extensions/chrome_v8_extension.h"
-#include "chrome/renderer/extensions/dispatcher.h"
-
+#include "extensions/renderer/object_backed_native_handler.h"
 #include "v8/include/v8.h"
 
-class ChromeV8Context;
-
 namespace extensions {
+class Dispatcher;
+class ScriptContext;
 
 // Native functions for JS to get access to the schemas for extension APIs.
-class ApiDefinitionsNatives : public ChromeV8Extension {
+class ApiDefinitionsNatives : public ObjectBackedNativeHandler {
  public:
-  ApiDefinitionsNatives(Dispatcher* dispatcher, ChromeV8Context* context);
+  ApiDefinitionsNatives(Dispatcher* dispatcher, ScriptContext* context);
 
  private:
   // Returns the list of all schemas that are available to the calling context.
   void GetExtensionAPIDefinitionsForTest(
       const v8::FunctionCallbackInfo<v8::Value>& args);
+
+  // Not owned.
+  Dispatcher* dispatcher_;
+
   DISALLOW_COPY_AND_ASSIGN(ApiDefinitionsNatives);
 };
 
 }  // namespace extensions
 
-#endif  // CHROME_RENDERER_EXTENSIONS_API_DEFINITIONS_NATIVES_H_
+#endif  // EXTENSIONS_RENDERER_API_DEFINITIONS_NATIVES_H_