Add new media request result MEDIA_DEVICE_FAILED_DUE_TO_SHUTDOWN.

content/browser/web_contents/web_contents_impl.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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1781 matching lines @@
   return widget_host_view;
 }
 
 void WebContentsImpl::RequestMediaAccessPermission(
     const MediaStreamRequest& request,
     const MediaResponseCallback& callback) {
   if (delegate_) {
     delegate_->RequestMediaAccessPermission(this, request, callback);
   } else {
     callback.Run(MediaStreamDevices(),
-                 MEDIA_DEVICE_INVALID_STATE,
+                 MEDIA_DEVICE_FAILED_DUE_TO_SHUTDOWN,
                  scoped_ptr<MediaStreamUI>());
   }
 }
 
 bool WebContentsImpl::CheckMediaAccessPermission(const GURL& security_origin,
                                                  MediaStreamType type) {
   DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE ||
          type == MEDIA_DEVICE_VIDEO_CAPTURE);
   return delegate_ &&
          delegate_->CheckMediaAccessPermission(this, security_origin, type);
@@ skipping 2559 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content