Browser-wide audio mirroring for TabCapture API

content/public/common/media_stream_request.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_COMMON_MEDIA_STREAM_REQUEST_H_
 #define CONTENT_PUBLIC_COMMON_MEDIA_STREAM_REQUEST_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 12 matching lines @@
   MEDIA_DEVICE_AUDIO_CAPTURE,
   MEDIA_DEVICE_VIDEO_CAPTURE,
 
   // Mirroring of a browser tab.
   MEDIA_TAB_AUDIO_CAPTURE,
   MEDIA_TAB_VIDEO_CAPTURE,
 
   NUM_MEDIA_TYPES
 };
 
+// Device id prefix schemes.
+CONTENT_EXPORT extern const char kMediaStreamTabDeviceScheme[];
+
 // Convenience predicates to determine whether the given type represents some
 // audio or some video device.
 CONTENT_EXPORT bool IsAudioMediaType(MediaStreamDeviceType type);
 CONTENT_EXPORT bool IsVideoMediaType(MediaStreamDeviceType type);
 
 // TODO(xians): Change the structs to classes.
 // Represents one device in a request for media stream(s).
 struct CONTENT_EXPORT MediaStreamDevice {
   MediaStreamDevice(
       MediaStreamDeviceType type,
@@ skipping 37 matching lines @@
 
   // A list of devices present on the user's computer, for each device type
   // requested.
   // All the elements in this map will be deleted in ~MediaStreamRequest().
   MediaStreamDeviceMap devices;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_MEDIA_STREAM_REQUEST_H_