Switch DesktopEnvironment to return a DesktopCapturer.

remoting/host/chromoting_host.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_CHROMOTING_HOST_H_
 #define REMOTING_HOST_CHROMOTING_HOST_H_
 
 #include <list>
 #include <string>
 
@@ skipping 31 matching lines @@
 // A class to implement the functionality of a host process.
 //
 // Here's the work flow of this class:
 // 1. We should load the saved GAIA ID token or if this is the first
 //    time the host process runs we should prompt user for the
 //    credential. We will use this token or credentials to authenicate
 //    and register the host.
 //
 // 2. We listen for incoming connection using libjingle. We will create
 //    a ConnectionToClient object that wraps around linjingle for transport.
-//    A VideoScheduler is created with an Encoder and a webrtc::ScreenCapturer.
+//    A VideoScheduler is created with an Encoder and a webrtc::DesktopCapturer.
 //    A ConnectionToClient is added to the ScreenRecorder for transporting
 //    the screen captures. An InputStub is created and registered with the
 //    ConnectionToClient to receive mouse / keyboard events from the remote
 //    client.
 //    After we have done all the initialization we'll start the ScreenRecorder.
 //    We'll then enter the running state of the host process.
 //
 // 3. When the user is disconnected, we will pause the ScreenRecorder
 //    and try to terminate the threads we have created. This will allow
 //    all pending tasks to complete. After all of that completed we
@@ skipping 154 matching lines @@
   HostExtensionList extensions_;
 
   base::WeakPtrFactory<ChromotingHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromotingHost);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CHROMOTING_HOST_H_