Bug 911987 part 1 - Add onanimation** and ontransitionend event handlers. r=masayuki,smaug

This event handler is defined CSS-Animation and CSS-Transition.
https://drafts.csswg.org/css-animations-1/#event-animationevent
https://github.com/w3c/csswg-drafts/pull/344

MozReview-Commit-ID: ARgsibd7wST

--HG--
extra : rebase_source : 7b4f366a8661508185d60ead9ce68fb234959577

dom/events/EventNameList.h

@@ -74,7 +74,7 @@
 #define TOUCH_EVENT MESSAGE_TO_EVENT
 #define DOCUMENT_ONLY_EVENT MESSAGE_TO_EVENT
 #define NON_IDL_EVENT MESSAGE_TO_EVENT
-#endif
+#endif /* MESSAGE_TO_EVENT */
 
 #ifdef DEFINED_FORWARDED_EVENT
 #error "Don't define DEFINED_FORWARDED_EVENT"
@@ -956,22 +956,22 @@ NON_IDL_EVENT(MozEdgeUICompleted,
               eSimpleGestureEventClass)
 
 // CSS Transition & Animation events:
-NON_IDL_EVENT(transitionend,
-              eTransitionEnd,
-              EventNameType_None,
-              eTransitionEventClass)
-NON_IDL_EVENT(animationstart,
-              eAnimationStart,
-              EventNameType_None,
-              eAnimationEventClass)
-NON_IDL_EVENT(animationend,
-              eAnimationEnd,
-              EventNameType_None,
-              eAnimationEventClass)
-NON_IDL_EVENT(animationiteration,
-              eAnimationIteration,
-              EventNameType_None,
-              eAnimationEventClass)
+EVENT(transitionend,
+      eTransitionEnd,
+      EventNameType_All,
+      eTransitionEventClass)
+EVENT(animationstart,
+      eAnimationStart,
+      EventNameType_All,
+      eAnimationEventClass)
+EVENT(animationend,
+      eAnimationEnd,
+      EventNameType_All,
+      eAnimationEventClass)
+EVENT(animationiteration,
+      eAnimationIteration,
+      EventNameType_All,
+      eAnimationEventClass)
 
 // Webkit-prefixed versions of Transition & Animation events, for web compat:
 NON_IDL_EVENT(webkitTransitionEnd,

dom/webidl/EventHandler.webidl

@@ -125,6 +125,12 @@ interface GlobalEventHandlers {
            attribute EventHandler onmozpointerlockchange;
            [Pref="pointer-lock-api.prefixed.enabled"]
            attribute EventHandler onmozpointerlockerror;
+
+           // CSS-Animation and CSS-Transition handlers.
+           attribute EventHandler onanimationend;
+           attribute EventHandler onanimationiteration;
+           attribute EventHandler onanimationstart;
+           attribute EventHandler ontransitionend;
 };
 
 [NoInterfaceObject]