Preparations for Cast Host Extension

remoting/host/client_session.h

Index: remoting/host/client_session.h
diff --git a/remoting/host/client_session.h b/remoting/host/client_session.h
index a86839ec5875e133f5a6f87a987829cd112aeb40..6e71bfb0aaf351ac757ba83876ca7250f6a7d979 100644
--- a/remoting/host/client_session.h
+++ b/remoting/host/client_session.h
@@ -30,6 +30,7 @@
 #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;
@@ -165,6 +166,18 @@ class ClientSession
     return client_capabilities_.get();
   }
 
+  void set_enable_cast(bool enable) { enable_cast_ = enable; }
+
+  scoped_refptr<base::SingleThreadTaskRunner> network_task_runner() {
+    return network_task_runner_;
+  }
+  scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner() {
+    return video_capture_task_runner_;
+  }
+  scoped_ptr<webrtc::ScreenCapturer> RequestScreenCapturer() {
+    return screen_capturer_.Pass();

[aiguha, 2014/07/17 01:49:23]

TODO(aiguha): Discuss with sergeyu@ a better design for sharing the screen
capturer.

+  }

[aiguha, 2014/07/17 01:49:23]

CastExtensionSession's constructor receives a pointer to the current
ClientSession. These methods were the shortest way to give CastExtensionSession
access to these objects. The CastExtensionSession needs the two task runners to
run PeerConenctionFactory on, and the ScreenCapturer to create the VideoSource
used by PeerConnection. 

+
  private:
   typedef ScopedVector<HostExtensionSession> HostExtensionSessionList;
 
@@ -266,6 +279,13 @@ class ClientSession
   // Host extension sessions, used to handle extension messages.
   HostExtensionSessionList extension_sessions_;
 
+  // True if cast mode is enabled.
+  bool enable_cast_;
+
+  // Used to capture screens. This is a class member to allow external objects,
+  // like CastExtensionSession, to request it when needed.
+  scoped_ptr<webrtc::ScreenCapturer> screen_capturer_;
+
   DISALLOW_COPY_AND_ASSIGN(ClientSession);
 };