Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

modules/mediastream/MediaStreamTrack.idl

Index: modules/mediastream/MediaStreamTrack.idl
diff --git a/modules/mediastream/MediaStreamTrack.idl b/modules/mediastream/MediaStreamTrack.idl
index b707a464193c2323c780cdf1f4a3ca5c4c057f9b..1c7f1fdb0fb6c9df8f54172fd621a2f3448ad701 100644
--- a/modules/mediastream/MediaStreamTrack.idl
+++ b/modules/mediastream/MediaStreamTrack.idl
@@ -24,16 +24,17 @@
 
 [
     GarbageCollected,
-    ActiveDOMObject
+    DependentLifetime
 ] interface MediaStreamTrack : EventTarget {
     readonly attribute DOMString kind;
     readonly attribute DOMString id;
     readonly attribute DOMString label;
     attribute boolean enabled;
     readonly attribute boolean muted;
+    readonly attribute boolean remote;
     readonly attribute DOMString readyState;
 
-    [CallWith=ExecutionContext, RaisesException, MeasureAs=MediaStreamTrackGetSources] static void getSources(MediaStreamTrackSourcesCallback callback);
+    [CallWith=ExecutionContext, RaisesException, DeprecateAs=MediaStreamTrackGetSources] static void getSources(MediaStreamTrackSourcesCallback callback);
     [ImplementedAs=stopTrack, RaisesException] void stop();
     [CallWith=ExecutionContext] MediaStreamTrack clone();