Media Session: use dictionary instead of an interface for MediaImage.

third_party/WebKit/Source/modules/mediasession/MediaImage.idl

Index: third_party/WebKit/Source/modules/mediasession/MediaImage.idl
diff --git a/third_party/WebKit/Source/modules/mediasession/MediaImage.idl b/third_party/WebKit/Source/modules/mediasession/MediaImage.idl
index fd33ba78bdc9692238d79bea4f41e1602b601f35..cce62b5865be71adb177bb5406eb7360463fcbff 100644
--- a/third_party/WebKit/Source/modules/mediasession/MediaImage.idl
+++ b/third_party/WebKit/Source/modules/mediasession/MediaImage.idl
@@ -2,14 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://wicg.github.io/mediasession/#the-mediaimage-interface
+// https://wicg.github.io/mediasession/#dictdef-mediaimage
 
-[
-    ConstructorCallWith=ExecutionContext,
-    Constructor(MediaImageInit image),
-    RuntimeEnabled=MediaSession,
-] interface MediaImage {
-  readonly attribute USVString src;
-  readonly attribute DOMString sizes;
-  readonly attribute DOMString type;
+dictionary MediaImage {
+  USVString src;

[Zhiqiang Zhang (Slow), 2017/01/05 16:03:07]

+required?

[mlamouri (slow - plz ping), 2017/01/05 19:28:22]

Done.

+  DOMString sizes;

[Zhiqiang Zhang (Slow), 2017/01/05 16:03:07]

= "" ?

[mlamouri (slow - plz ping), 2017/01/05 19:28:22]

Done.

+  DOMString type;

[Zhiqiang Zhang (Slow), 2017/01/05 16:03:07]

= "" ?

[mlamouri (slow - plz ping), 2017/01/05 19:28:22]

Done.

 };