CastExtension Impl for Chromoting Host

remoting/host/client_session.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_CLIENT_SESSION_H_
 #define REMOTING_HOST_CLIENT_SESSION_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 12 matching lines @@
 #include "remoting/protocol/clipboard_echo_filter.h"
 #include "remoting/protocol/clipboard_filter.h"
 #include "remoting/protocol/clipboard_stub.h"
 #include "remoting/protocol/connection_to_client.h"
 #include "remoting/protocol/host_stub.h"
 #include "remoting/protocol/input_event_tracker.h"
 #include "remoting/protocol/input_filter.h"
 #include "remoting/protocol/input_stub.h"
 #include "remoting/protocol/pairing_registry.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+#include "third_party/webrtc/modules/desktop_capture/screen_capturer.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace remoting {
 
 class AudioEncoder;
 class AudioScheduler;
 class DesktopEnvironment;
@@ skipping 110 matching lines @@
   protocol::ConnectionToClient* connection() const {
     return connection_.get();
   }
 
   bool is_authenticated() { return auth_input_filter_.enabled();  }
 
   const std::string* client_capabilities() const {
     return client_capabilities_.get();
   }
 
+  // Stops the VideoScheduler (which stops capturing, encoding and streaming)
+  // and passes a new webrtc::ScreenCapturer to the caller.
+  scoped_ptr<webrtc::ScreenCapturer> RequestScreenCapturer();

[aiguha, 2014/07/29 04:23:45]

The actual implementation of this hook is in
https://codereview.chromium.org/398873005/. The declaration is included here
based on advice in that CL's review as well.

This hook is the current working solution to sharing the ScreenCapturer with the
ExtensionSession, however wez@, sergeyu@ and I have discussed another solution
offline that he is working on. In the meantime, I'd like to discuss & solve all
other issues with this CL so it is ready when the other CL lands.

+
  private:
   typedef ScopedVector<HostExtensionSession> HostExtensionSessionList;
 
   // Creates a proxy for sending clipboard events to the client.
   scoped_ptr<protocol::ClipboardStub> CreateClipboardProxy();
 
   // Creates an audio encoder for the specified configuration.
   static scoped_ptr<AudioEncoder> CreateAudioEncoder(
       const protocol::SessionConfig& config);
 
@@ skipping 87 matching lines @@
 
   // Host extension sessions, used to handle extension messages.
   HostExtensionSessionList extension_sessions_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientSession);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CLIENT_SESSION_H_