beginnings of metro viewer process

ui/viewer/viewer_process.cc

+// 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.
+
+#include "ui/viewer/viewer_process.h"
+
+#include "ui/viewer/viewer_ipc_server.h"
+#include "ui/viewer/viewer_host_win.h"
+
+ViewerProcess* g_viewer_process = NULL;
+
+ViewerProcess::ViewerProcess()
+  : shutdown_event_(true, false),
+    main_message_loop_(NULL) {
+  DCHECK(!g_viewer_process);
+  g_viewer_process = this;
+}
+
+ViewerProcess::~ViewerProcess() {
+  Teardown();
+  g_viewer_process = NULL;
+}
+
+bool ViewerProcess::Initialize(MessageLoop* message_loop,
+                               const CommandLine& command_line) {
+  main_message_loop_ = message_loop;
+
+  base::Thread::Options options;
+  options.message_loop_type = MessageLoop::TYPE_IO;
+  io_thread_.reset(new base::Thread("ViewerProcess_IO"));
+  if (!io_thread_->StartWithOptions(options)) {
+    NOTREACHED();
+    Teardown();
+    return false;
+  }
+
+  VLOG(1) << "Starting Viewer Process IPC Server";
+  // TODO(scottmg): Channel name should be per user-data-dir.
+  ipc_server_.reset(new ViewerIPCServer("viewer_ipc"));
+  ipc_server_->Init();
+
+  // TODO(scottmg): I guess the whole thing should be made Windows-only at
+  // some point.
+#if defined(OS_WIN)
+  viewer_host_win_.reset(new ViewerHostWin);
+#endif
+
+  // TODO(scottmg): Ask for a handle here, maybe start a browser, all that
+  // jazz.
+
+  return true;
+}
+
+bool ViewerProcess::Teardown() {
+  ipc_server_.reset();
+  io_thread_.reset();
+  return true;
+}
+
+bool ViewerProcess::HandleClientDisconnect() {
+  Terminate();
+  return false;
+}
+
+void ViewerProcess::Terminate() {
+  main_message_loop_->PostTask(FROM_HERE, MessageLoop::QuitClosure());
+}