Bug 1311252 - Make MediaKeyMessageEvent.webidl patch spec. r=smaug

Update our copy of EncryptedMediaExtensions.idl to match upstream
Web Platform Tests, so we keep passing.

MozReview-Commit-ID: IHaVX45GrYx

--HG--
extra : rebase_source : 204f91e383f8318e0d4e6d9e774ce1d87f90ee4d

dom/media/eme/MediaKeyMessageEvent.cpp

@@ -85,15 +85,10 @@ MediaKeyMessageEvent::Constructor(const GlobalObject& aGlobal,
   RefPtr<MediaKeyMessageEvent> e = new MediaKeyMessageEvent(owner);
   bool trusted = e->Init(owner);
   e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);
-  const uint8_t* data = nullptr;
-  size_t length = 0;
-  if (aEventInitDict.mMessage.WasPassed()) {
-    const auto& a = aEventInitDict.mMessage.Value();
-    a.ComputeLengthAndData();
-    data = a.Data();
-    length = a.Length();
-  }
-  e->mMessage = ArrayBuffer::Create(aGlobal.Context(), length, data);
+  aEventInitDict.mMessage.ComputeLengthAndData();
+  e->mMessage = ArrayBuffer::Create(aGlobal.Context(),
+                                    aEventInitDict.mMessage.Length(),
+                                    aEventInitDict.mMessage.Data());
   if (!e->mMessage) {
     aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
     return nullptr;

dom/webidl/MediaKeyMessageEvent.webidl

@@ -17,7 +17,7 @@ enum MediaKeyMessageType {
   "individualization-request"
 };
 
-[Pref="media.eme.apiVisible", Constructor(DOMString type, optional MediaKeyMessageEventInit eventInitDict)]
+[Pref="media.eme.apiVisible", Constructor(DOMString type, MediaKeyMessageEventInit eventInitDict)]
 interface MediaKeyMessageEvent : Event {
   readonly attribute MediaKeyMessageType messageType;
   [Throws]
@@ -25,6 +25,6 @@ interface MediaKeyMessageEvent : Event {
 };
 
 dictionary MediaKeyMessageEventInit : EventInit {
-  MediaKeyMessageType messageType = "license-request";
-  ArrayBuffer message;
+  required MediaKeyMessageType messageType;
+  required ArrayBuffer message;
 };

testing/web-platform/tests/encrypted-media/EncryptedMediaExtensions.idl

@@ -4,6 +4,7 @@
 //       which this IDL was extracted.
 //
 // https://www.w3.org/TR/2016/WD-encrypted-media-20160610/
+//  + commit 5499821932391ae2c2e53756ae7ab9fae89d5863
 //
 
 partial interface Navigator {
@@ -86,15 +87,15 @@ enum MediaKeyMessageType {
     "individualization-request"
 };
 
-[ Constructor (DOMString type, optional MediaKeyMessageEventInit eventInitDict)]
+[Constructor(DOMString type, MediaKeyMessageEventInit eventInitDict)]
 interface MediaKeyMessageEvent : Event {
     readonly        attribute MediaKeyMessageType messageType;
     readonly        attribute ArrayBuffer         message;
 };
 
 dictionary MediaKeyMessageEventInit : EventInit {
-             MediaKeyMessageType messageType = "license-request";
-             ArrayBuffer         message;
+             required MediaKeyMessageType messageType;
+             required ArrayBuffer         message;
 };
 
 // partial interface HTMLMediaElement : EventTarget {