Create MetroViewerProcessHost as a common base for TestMetroViewerProcessHost and ChromeMetroViewer…

chrome/browser/metro_viewer/metro_viewer_process_host_win.h

-// Copyright 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_METRO_VIEWER_METRO_VIEWER_PROCESS_HOST_WIN_H_
-#define CHROME_BROWSER_METRO_VIEWER_METRO_VIEWER_PROCESS_HOST_WIN_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/process_util.h"
-#include "base/threading/non_thread_safe.h"
-#include "ipc/ipc_listener.h"
-#include "ipc/ipc_sender.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace IPC {
-class ChannelProxy;
-}
-
-class MetroViewerProcessHost : public IPC::Listener,
-                               public IPC::Sender,
-                               public base::NonThreadSafe {
- public:
-  explicit MetroViewerProcessHost(const std::string& ipc_channel_name);
-  virtual ~MetroViewerProcessHost();
-
-  // Returns the process id of the viewer process if one is connected to this
-  // host, returns base::kNullProcessId otherwise.
-  base::ProcessId GetViewerProcessId();
-
- private:
-  // IPC::Sender implementation:
-  virtual bool Send(IPC::Message* msg) OVERRIDE;
-
-  // IPC::Listener implementation:
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-  virtual void OnChannelError() OVERRIDE;
-
-  void OnSetTargetSurface(gfx::NativeViewId target_surface);
-
-  scoped_ptr<IPC::ChannelProxy> channel_;
-
-  DISALLOW_COPY_AND_ASSIGN(MetroViewerProcessHost);
-};
-
-#endif  // CHROME_BROWSER_METRO_VIEWER_METRO_VIEWER_PROCESS_HOST_WIN_H_