Turned UiStrings into a singleton so that the continue window does not depend on ChromotingHost.

remoting/host/chromoting_host_unittest.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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop_proxy.h"
 #include "remoting/base/auto_thread_task_runner.h"
 #include "remoting/capturer/video_frame_capturer_fake.h"
@@ skipping 64 matching lines @@
 
   // A test-only version of Start that does not register a HostStatusObserver.
   // TODO(rmsousa): Make the unit tests work with the regular Start().
   virtual void Start(ChromotingHost* host,
                      const base::Closure& disconnect_callback) OVERRIDE;
 };
 
 MockIt2MeHostUserInterface::MockIt2MeHostUserInterface(
     scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner)
-    : It2MeHostUserInterface(network_task_runner, ui_task_runner) {
+    : It2MeHostUserInterface(network_task_runner, ui_task_runner, UiStrings()) {
 }
 
 void MockIt2MeHostUserInterface::InitFrom(
     scoped_ptr<DisconnectWindow> disconnect_window,
     scoped_ptr<ContinueWindow> continue_window,
     scoped_ptr<LocalInputMonitor> local_input_monitor) {
   DCHECK(ui_task_runner()->BelongsToCurrentThread());
 
   disconnect_window_ = disconnect_window.Pass();
   continue_window_ = continue_window.Pass();
@@ skipping 623 matching lines @@
   ExpectClientDisconnected(0, true, video_packet_sent,
       InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
   EXPECT_CALL(host_status_observer_, OnShutdown());
 
   host_->Start(xmpp_login_);
   SimulateClientConnection(0, true, false);
   message_loop_.Run();
 }
 
 }  // namespace remoting