Update webrtc::DesktopCapturer clients to implement OnCaptureResult().

remoting/host/desktop_session_agent.cc

Index: remoting/host/desktop_session_agent.cc
diff --git a/remoting/host/desktop_session_agent.cc b/remoting/host/desktop_session_agent.cc
index 628d1c92b4ab8b5116a97d2db22946baf19944fe..200c33442fd6cad53b24ef91aa31eda8da45014a 100644
--- a/remoting/host/desktop_session_agent.cc
+++ b/remoting/host/desktop_session_agent.cc
@@ -321,11 +321,11 @@ void DesktopSessionAgent::OnStartSessionAgent(
   mouse_cursor_monitor_->Init(this, webrtc::MouseCursorMonitor::SHAPE_ONLY);
 }
 
-void DesktopSessionAgent::OnCaptureCompleted(webrtc::DesktopFrame* frame) {
+void DesktopSessionAgent::OnCaptureResult(
+    webrtc::DesktopCapturer::Result result,
+    std::unique_ptr<webrtc::DesktopFrame> frame) {
   DCHECK(caller_task_runner_->BelongsToCurrentThread());
 
-  last_frame_.reset(frame);
-
   // Serialize webrtc::DesktopFrame.
   SerializedDesktopFrame serialized_frame;
   if (frame) {
@@ -340,8 +340,10 @@ void DesktopSessionAgent::OnCaptureCompleted(webrtc::DesktopFrame* frame) {
     }
   }
 
+  last_frame_ = std::move(frame);
+
   SendToNetwork(base::WrapUnique(
-      new ChromotingDesktopNetworkMsg_CaptureCompleted(serialized_frame)));
+      new ChromotingDesktopNetworkMsg_CaptureResult(result, serialized_frame)));
 }
 
 void DesktopSessionAgent::OnMouseCursor(webrtc::MouseCursor* cursor) {