MuteSource Audio During Full Screen Cast

media/audio/audio_device_description.cc

 // Copyright 2016 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 "base/logging.h"
 #include "media/audio/audio_device_description.h"
 #include "media/base/media_resources.h"
 
 namespace media {
 const char AudioDeviceDescription::kDefaultDeviceId[] = "default";
 const char AudioDeviceDescription::kCommunicationsDeviceId[] = "communications";
 const char AudioDeviceDescription::kLoopbackInputDeviceId[] = "loopback";
+const char AudioDeviceDescription::kLoopbackWithMuteDeviceId[] =
+    "loopbackWithMute";
 
 // static
 bool AudioDeviceDescription::IsDefaultDevice(const std::string& device_id) {
   return device_id.empty() ||
          device_id == AudioDeviceDescription::kDefaultDeviceId;
 }
 
 // static
 bool AudioDeviceDescription::UseSessionIdToSelectDevice(
     int session_id,
@@ skipping 15 matching lines @@
 std::string AudioDeviceDescription::GetCommunicationsDeviceName() {
 #if defined(OS_WIN)
   return GetLocalizedStringUTF8(COMMUNICATIONS_AUDIO_DEVICE_NAME);
 #else
   NOTREACHED();
   return "";
 #endif
 }
 
 }  // namespace media