Use IpcVideoFrameCapturer on network thread instead of capturer thread.

remoting/host/win/session_desktop_environment.cc

 // 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.
 
 #include "remoting/host/win/session_desktop_environment.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 11 matching lines @@
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
 
   return make_scoped_ptr(new SessionInputInjectorWin(
       input_task_runner(),
       InputInjector::Create(input_task_runner(), ui_task_runner()),
       ui_task_runner(), inject_sas_));
 }
 
 SessionDesktopEnvironment::SessionDesktopEnvironment(
     scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
     const base::Closure& inject_sas,
     bool supports_touch_events)
     : Me2MeDesktopEnvironment(caller_task_runner,
+                              video_capture_task_runner,
                               input_task_runner,
                               ui_task_runner,
                               supports_touch_events),
-      inject_sas_(inject_sas) {
-}
+      inject_sas_(inject_sas) {}
 
 SessionDesktopEnvironmentFactory::SessionDesktopEnvironmentFactory(
     scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
     const base::Closure& inject_sas)
     : Me2MeDesktopEnvironmentFactory(caller_task_runner,
+                                     video_capture_task_runner,
                                      input_task_runner,
                                      ui_task_runner),
       inject_sas_(inject_sas) {
   DCHECK(caller_task_runner->BelongsToCurrentThread());
 }
 
-SessionDesktopEnvironmentFactory::~SessionDesktopEnvironmentFactory() {
-}
+SessionDesktopEnvironmentFactory::~SessionDesktopEnvironmentFactory() {}
 
 scoped_ptr<DesktopEnvironment> SessionDesktopEnvironmentFactory::Create(
     base::WeakPtr<ClientSessionControl> client_session_control) {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
 
   scoped_ptr<SessionDesktopEnvironment> desktop_environment(
-      new SessionDesktopEnvironment(caller_task_runner(), input_task_runner(),
-                                    ui_task_runner(), inject_sas_,
-                                    supports_touch_events()));
+      new SessionDesktopEnvironment(caller_task_runner(),
+                                    video_capture_task_runner(),
+                                    input_task_runner(), ui_task_runner(),
+                                    inject_sas_, supports_touch_events()));
   if (!desktop_environment->InitializeSecurity(client_session_control,
                                                curtain_enabled())) {
     return nullptr;
   }
 
   return std::move(desktop_environment);
 }
 
 }  // namespace remoting