Move files inside chrome/browser/chromeos/dbus to chromeos/dbus

chrome/browser/chromeos/dbus/blocking_method_caller.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_BROWSER_CHROMEOS_DBUS_BLOCKING_METHOD_CALLER_H_
-#define CHROME_BROWSER_CHROMEOS_DBUS_BLOCKING_METHOD_CALLER_H_
-#pragma once
-
-#include "base/callback.h"
-#include "base/synchronization/waitable_event.h"
-
-namespace dbus {
-
-class Bus;
-class ObjectProxy;
-class MethodCall;
-class Response;
-
-}  // namespace dbus
-
-namespace chromeos {
-
-// A utility class to call D-Bus methods in a synchronous (blocking) way.
-// Note: Blocking the thread until it returns is not a good idea in most cases.
-//       Avoid using this class as hard as you can.
-class BlockingMethodCaller {
- public:
-  BlockingMethodCaller(dbus::Bus* bus, dbus::ObjectProxy* proxy);
-  virtual ~BlockingMethodCaller();
-
-  // Calls the method and blocks until it returns.
-  // The caller is responsible to delete the returned object.
-  dbus::Response* CallMethodAndBlock(dbus::MethodCall* method_call);
-
- private:
-  dbus::Bus* bus_;
-  dbus::ObjectProxy* proxy_;
-  base::WaitableEvent on_blocking_method_call_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlockingMethodCaller);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_DBUS_BLOCKING_METHOD_CALLER_H_