Switch DesktopEnvironment to return a DesktopCapturer.

remoting/host/ipc_video_frame_capturer.cc

Index: remoting/host/ipc_video_frame_capturer.cc
diff --git a/remoting/host/ipc_video_frame_capturer.cc b/remoting/host/ipc_video_frame_capturer.cc
index c56c20e1f9fb0fdc2d36bcb556cfa44f4fa4ac44..7f39a3dc354e7eb8528d0a5193c72f3776624fa1 100644
--- a/remoting/host/ipc_video_frame_capturer.cc
+++ b/remoting/host/ipc_video_frame_capturer.cc
@@ -13,7 +13,6 @@ namespace remoting {
 IpcVideoFrameCapturer::IpcVideoFrameCapturer(
     scoped_refptr<DesktopSessionProxy> desktop_session_proxy)
     : callback_(NULL),
-      mouse_shape_observer_(NULL),
       desktop_session_proxy_(desktop_session_proxy),
       capture_pending_(false),
       weak_factory_(this) {
@@ -29,23 +28,6 @@ void IpcVideoFrameCapturer::Start(Callback* callback) {
   desktop_session_proxy_->SetVideoCapturer(weak_factory_.GetWeakPtr());
 }
 
-void IpcVideoFrameCapturer::SetMouseShapeObserver(
-      MouseShapeObserver* mouse_shape_observer) {
-  DCHECK(!mouse_shape_observer_);
-  DCHECK(mouse_shape_observer);
-  mouse_shape_observer_ = mouse_shape_observer;
-}
-
-bool IpcVideoFrameCapturer::GetScreenList(ScreenList* screens) {
-  NOTIMPLEMENTED();
-  return false;
-}
-
-bool IpcVideoFrameCapturer::SelectScreen(webrtc::ScreenId id) {
-  NOTIMPLEMENTED();
-  return false;
-}
-
 void IpcVideoFrameCapturer::Capture(const webrtc::DesktopRegion& region) {
   DCHECK(!capture_pending_);
   capture_pending_ = true;
@@ -59,10 +41,4 @@ void IpcVideoFrameCapturer::OnCaptureCompleted(
   callback_->OnCaptureCompleted(frame.release());
 }
 
-void IpcVideoFrameCapturer::OnCursorShapeChanged(
-    scoped_ptr<webrtc::MouseCursorShape> cursor_shape) {
-  if (mouse_shape_observer_)
-    mouse_shape_observer_->OnCursorShapeChanged(cursor_shape.release());
-}
-
 }  // namespace remoting