Initial pass at integrating Differ into the chromoting host code....

remoting/host/simple_host_process.cc

 // Copyright (c) 2010 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.
 //
 // This is an application of a minimal host process in a Chromoting
 // system. It serves the purpose of gluing different pieces together
 // to make a functional host process for testing.
 //
 // It peforms the following functionality:
 // 1. Connect to the GTalk network and register the machine as a host.
@@ skipping 85 matching lines @@
   std::string path = GetEnvironmentVar(base::env_vars::kHome);
 #endif
   FilePath config_path(path);
   config_path = config_path.Append(kDefaultConfigPath);
   if (cmd_line->HasSwitch(kConfigSwitchName)) {
     config_path = cmd_line->GetSwitchValuePath(kConfigSwitchName);
   }
 
   if (fake) {
     // Inject a fake capturer.
-    LOG(INFO) << "Usage a fake capturer.";
+    LOG(INFO) << "Using a fake capturer.";
     capturer.reset(new remoting::CapturerFake());
   }
 
   base::Thread file_io_thread("FileIO");
   file_io_thread.Start();
 
   scoped_refptr<remoting::JsonHostConfig> config(
       new remoting::JsonHostConfig(
           config_path, file_io_thread.message_loop_proxy()));
 
   if (!config->Read()) {
     LOG(ERROR) << "Failed to read configuration file " << config_path.value();
     return 1;
   }
 
   // Allocate a chromoting context and starts it.
   remoting::ChromotingHostContext context;
   context.Start();
 
   // Construct a chromoting host.
   scoped_refptr<remoting::ChromotingHost> host =
       new remoting::ChromotingHost(&context,
                                    config,
                                    capturer.release(),
                                    encoder.release(),
                                    executor.release());
 
-  // Let the chromoting host runs until the shutdown task is executed.
+  // Let the chromoting host run until the shutdown task is executed.
   MessageLoop message_loop(MessageLoop::TYPE_UI);
   host->Start(NewRunnableFunction(&ShutdownTask, &message_loop));
   message_loop.Run();
 
   // And then stop the chromoting context.
   context.Stop();
   file_io_thread.Stop();
   return 0;
 }