Refactor IT2Me-specific functions into a HostObserver subclass.

remoting/host/chromoting_host_unittest.cc

Index: remoting/host/chromoting_host_unittest.cc
diff --git a/remoting/host/chromoting_host_unittest.cc b/remoting/host/chromoting_host_unittest.cc
index ad2bca8a4e60b526878bdebc71acfa5cbcc1d3fd..a4f08ea651fbef711a8076beeb8683977ddba3b0 100644
--- a/remoting/host/chromoting_host_unittest.cc
+++ b/remoting/host/chromoting_host_unittest.cc
@@ -11,6 +11,7 @@
 #include "remoting/host/chromoting_host_context.h"
 #include "remoting/host/host_mock_objects.h"
 #include "remoting/host/in_memory_host_config.h"
+#include "remoting/host/it2me_observer.h"
 #include "remoting/proto/video.pb.h"
 #include "remoting/protocol/protocol_mock_objects.h"
 #include "remoting/protocol/session_config.h"
@@ -90,18 +91,22 @@ class ChromotingHostTest : public testing::Test {
     Capturer* capturer = new CapturerFake();
     event_executor_ = new MockEventExecutor();
     curtain_ = new MockCurtain();
-    disconnect_window_ = new MockDisconnectWindow();
-    continue_window_ = new MockContinueWindow();
-    local_input_monitor_ = new MockLocalInputMonitor();
     desktop_environment_.reset(
-        new DesktopEnvironment(&context_, capturer, event_executor_, curtain_,
-                               disconnect_window_, continue_window_,
-                               local_input_monitor_));
+        new DesktopEnvironment(&context_, capturer, event_executor_, curtain_));
     MockAccessVerifier* access_verifier = new MockAccessVerifier();
 
     host_ = ChromotingHost::Create(&context_, config_,
                                    desktop_environment_.get(),
                                    access_verifier, false);
+
+    disconnect_window_ = new MockDisconnectWindow();
+    continue_window_ = new MockContinueWindow();
+    local_input_monitor_ = new MockLocalInputMonitor();
+    it2me_observer_.reset(new It2MeObserver(host_, &context_));
+    it2me_observer_->InitFrom(disconnect_window_, continue_window_,
+                              local_input_monitor_);
+    host_->AddStatusObserver(it2me_observer_.get());
+
     session_ = new MockSession();
     session2_ = new MockSession();
     session_config_ = SessionConfig::GetDefault();
@@ -217,6 +222,7 @@ class ChromotingHostTest : public testing::Test {
   scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
   MockConnectionToClientEventHandler handler_;
   scoped_ptr<DesktopEnvironment> desktop_environment_;
+  scoped_ptr<It2MeObserver> it2me_observer_;
   scoped_refptr<ChromotingHost> host_;
   scoped_refptr<InMemoryHostConfig> config_;
   MockChromotingHostContext context_;