ResizingHostObserver is created by the desktop environment together with other stubs.

remoting/host/host_mock_objects.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 REMOTING_HOST_HOST_MOCK_OBJECTS_H_
 #define REMOTING_HOST_HOST_MOCK_OBJECTS_H_
 
 #include "net/base/ip_endpoint.h"
 #include "remoting/host/chromoting_host_context.h"
 #include "remoting/host/client_session.h"
 #include "remoting/host/continue_window.h"
 #include "remoting/host/desktop_environment.h"
 #include "remoting/host/disconnect_window.h"
 #include "remoting/host/event_executor.h"
 #include "remoting/host/host_status_observer.h"
 #include "remoting/host/local_input_monitor.h"
+#include "remoting/host/session_controller.h"
 #include "remoting/proto/control.pb.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace remoting {
 
 class MockDesktopEnvironment : public DesktopEnvironment {
  public:
   MockDesktopEnvironment();
   virtual ~MockDesktopEnvironment();
 
   MOCK_METHOD1(CreateAudioCapturerPtr,
                AudioCapturer*(scoped_refptr<base::SingleThreadTaskRunner>));
   MOCK_METHOD2(CreateEventExecutorPtr,
                EventExecutor*(scoped_refptr<base::SingleThreadTaskRunner>,
                               scoped_refptr<base::SingleThreadTaskRunner>));
+  MOCK_METHOD0(CreateSessionControllerPtr, SessionController*());
   MOCK_METHOD2(
       CreateVideoCapturerPtr,
       media::ScreenCapturer*(scoped_refptr<base::SingleThreadTaskRunner>,
                           scoped_refptr<base::SingleThreadTaskRunner>));
 
   // DesktopEnvironment implementation.
   virtual scoped_ptr<AudioCapturer> CreateAudioCapturer(
       scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner) OVERRIDE;
   virtual scoped_ptr<EventExecutor> CreateEventExecutor(
       scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) OVERRIDE;
+  virtual scoped_ptr<SessionController> CreateSessionController() OVERRIDE;
   virtual scoped_ptr<media::ScreenCapturer> CreateVideoCapturer(
       scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner) OVERRIDE;
 };
 
 class MockDisconnectWindow : public DisconnectWindow {
  public:
   MockDisconnectWindow();
   virtual ~MockDisconnectWindow();
 
@@ skipping 30 matching lines @@
   MOCK_METHOD1(OnSessionAuthenticated, void(ClientSession* client));
   MOCK_METHOD1(OnSessionChannelsConnected, void(ClientSession* client));
   MOCK_METHOD1(OnSessionAuthenticationFailed, void(ClientSession* client));
   MOCK_METHOD1(OnSessionClosed, void(ClientSession* client));
   MOCK_METHOD2(OnSessionSequenceNumber, void(ClientSession* client,
                                              int64 sequence_number));
   MOCK_METHOD3(OnSessionRouteChange, void(
       ClientSession* client,
       const std::string& channel_name,
       const protocol::TransportRoute& route));
-  MOCK_METHOD3(OnClientResolutionChanged, void(ClientSession* client,
-                                               const SkISize& size,
-                                               const SkIPoint& dpi));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockClientSessionEventHandler);
 };
 
 class MockDesktopEnvironmentFactory : public DesktopEnvironmentFactory {
  public:
   MockDesktopEnvironmentFactory();
   virtual ~MockDesktopEnvironmentFactory();
 
@@ skipping 36 matching lines @@
   MOCK_METHOD1(OnClientConnected, void(const std::string& jid));
   MOCK_METHOD1(OnClientDisconnected, void(const std::string& jid));
   MOCK_METHOD3(OnClientRouteChange,
                void(const std::string& jid,
                     const std::string& channel_name,
                     const protocol::TransportRoute& route));
   MOCK_METHOD1(OnStart, void(const std::string& xmpp_login));
   MOCK_METHOD0(OnShutdown, void());
 };
 
+class MockSessionController : public SessionController {
+ public:
+  MockSessionController();
+  virtual ~MockSessionController();
+
+  MOCK_METHOD2(OnClientResolutionChanged,
+               void(const SkIPoint&, const SkISize&));
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockSessionController);
+};
+
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_HOST_MOCK_OBJECTS_H_