Move c/r/extensions/* into extensions namespace

chrome/renderer/extensions/extension_request_sender.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_EXTENSION_REQUEST_SENDER_H_
-#define CHROME_RENDERER_EXTENSIONS_EXTENSION_REQUEST_SENDER_H_
-
-#include <string>
-#include <map>
-
-#include "base/memory/linked_ptr.h"
-#include "v8/include/v8.h"
-
-class ChromeV8ContextSet;
-class ExtensionDispatcher;
-
-namespace base {
-class ListValue;
-}
-
-struct PendingRequest;
-
-// Responsible for sending requests for named extension API functions to the
-// extension host and routing the responses back to the caller.
-class ExtensionRequestSender {
- public:
-  explicit ExtensionRequestSender(ExtensionDispatcher* extension_dispatcher,
-                                  ChromeV8ContextSet* context_set);
-  ~ExtensionRequestSender();
-
-  // Makes a call to the API function |name| that is to be handled by the
-  // extension host. The response to this request will be received in
-  // HandleResponse().
-  // TODO(koz): Remove |request_id| and generate that internally.
-  void StartRequest(const std::string& name,
-                    int request_id,
-                    bool has_callback,
-                    bool for_io_thread,
-                    base::ListValue* value_args);
-
-  // Handles responses from the extension host to calls made by StartRequest().
-  void HandleResponse(int request_id,
-                      bool success,
-                      const base::ListValue& response,
-                      const std::string& error);
-
-
- private:
-  typedef std::map<int, linked_ptr<PendingRequest> > PendingRequestMap;
-
-  void InsertRequest(int request_id, PendingRequest* pending_request);
-  linked_ptr<PendingRequest> RemoveRequest(int request_id);
-
-  ExtensionDispatcher* extension_dispatcher_;
-  PendingRequestMap pending_requests_;
-  ChromeV8ContextSet* context_set_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionRequestSender);
-};
-
-#endif  // CHROME_RENDERER_EXTENSIONS_EXTENSION_REQUEST_SENDER_H_