support video device enumeration from renderer process.

content/renderer/media/media_stream_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/renderer/media/media_stream_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 333 matching lines @@
 
 void MediaStreamImpl::OnAudioDeviceFailed(const std::string& label,
                                           int index) {
   DCHECK(CalledOnValidThread());
   DVLOG(1) << "MediaStreamImpl::OnAudioDeviceFailed("
            << label << ", " << index << ")";
   // TODO(grunell): Implement. Currently not supported in WebKit.
   NOTIMPLEMENTED();
 }
 
+void MediaStreamImpl::OnDevicesEnumerated(
+    int request_id,
+    const media_stream::StreamDeviceInfoArray& device_array) {
+  DVLOG(1) << "MediaStreamImpl::OnDevicesEnumerated("
+           << request_id << ")";
+  NOTIMPLEMENTED();
+}
+
+void MediaStreamImpl::OnDevicesEnumerationFailed(int request_id) {
+  DVLOG(1) << "MediaStreamImpl::OnDevicesEnumerationFailed("
+           << request_id << ")";
+  NOTIMPLEMENTED();
+}
+
+void MediaStreamImpl::OnDeviceOpened(
+    int request_id,
+    const std::string& label,
+    const media_stream::StreamDeviceInfo& video_device) {
+  DVLOG(1) << "MediaStreamImpl::OnDeviceOpened("
+           << request_id << ", " << label << ")";
+  NOTIMPLEMENTED();
+}
+
+void MediaStreamImpl::OnDeviceOpenFailed(int request_id) {
+  DVLOG(1) << "MediaStreamImpl::VideoDeviceOpenFailed("
+           << request_id << ")";
+  NOTIMPLEMENTED();
+}
+
 void MediaStreamImpl::InitializeWorkerThread(talk_base::Thread** thread,
                                              base::WaitableEvent* event) {
   jingle_glue::JingleThreadWrapper::EnsureForCurrentThread();
   jingle_glue::JingleThreadWrapper::current()->set_send_allowed(true);
   *thread = jingle_glue::JingleThreadWrapper::current();
   event->Signal();
 }
 
 void MediaStreamImpl::DeleteIpcNetworkManager() {
   DCHECK_EQ(MessageLoop::current(), chrome_worker_thread_.message_loop());
   delete network_manager_;
   network_manager_ = NULL;
 }