Add SourceBuffer implementations of Audio/VideoTracks

third_party/WebKit/Source/modules/mediasource/AudioTrack.idl

Index: third_party/WebKit/Source/modules/mediasource/AudioTrack.idl
diff --git a/third_party/WebKit/Source/core/frame/NavigatorOnLine.idl b/third_party/WebKit/Source/modules/mediasource/AudioTrack.idl
similarity index 84%
copy from third_party/WebKit/Source/core/frame/NavigatorOnLine.idl
copy to third_party/WebKit/Source/modules/mediasource/AudioTrack.idl
index 94468aaeeedffbf3fd984d6229c3567c9012504b..2b646aa7746260c04fe525b1534c93b5fb7bed26 100644
--- a/third_party/WebKit/Source/core/frame/NavigatorOnLine.idl
+++ b/third_party/WebKit/Source/modules/mediasource/AudioTrack.idl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Samsung Electronics. All rights reserved.
+ * Copyright (C) 2016 Google Inc. All rights reserved.

[philipj_slow, 2016/02/23 04:35:07]

Use the new smaller copyright header, here and in other new files.

[servolk, 2016/02/24 00:11:36]

Done.

  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -28,11 +28,11 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// https://html.spec.whatwg.org/#navigator.online
+// http://www.w3.org/TR/media-source/#audio-track-extensions

[philipj_slow, 2016/02/23 04:35:07]

Please use the most up-to-date spec available:
https://w3c.github.io/media-source/#audio-track-extensions

As implementors, we should always look at the most recent version of any spec,
to not risk implementing bugs that have already been fixed, etc.

[servolk, 2016/02/24 00:11:36]

Done.

 
 [
-    NoInterfaceObject, // Always used on target of 'implements'
-    Exposed=(Window,Worker),
-] interface NavigatorOnLine {
-    readonly attribute boolean onLine;
+    RuntimeEnabled=AudioVideoTracks,
+    ImplementedAs=SourceBufferAudioTrack,

[philipj_slow, 2016/02/23 04:35:07]

If you rename this file to AudioTrackSourceBuffer.idl and do the same with the
implementation files, you can drop ImplementedAs. BaseInterfaceExtension is the
usual pattern, see e.g. DocumentFullscreen.idl and the many
HTMLMediaElement*.idl

[servolk, 2016/02/24 00:11:36]

Done.

+] partial interface AudioTrack {
+    readonly attribute SourceBuffer? sourceBuffer;
 };