Roll IDL to Dartium37 (r181268)

core/animation/Timing.idl

Index: core/animation/Timing.idl
diff --git a/core/animation/Timing.idl b/core/animation/Timing.idl
index 9da75c59cee76e63c23fa01ea3d43ff5d69f26d7..49e93e1d61ff9e88a1be4074541ed78e8f0de0b7 100644
--- a/core/animation/Timing.idl
+++ b/core/animation/Timing.idl
@@ -4,7 +4,8 @@
 
 [
     RuntimeEnabled=WebAnimationsAPI,
-    ImplementedAs=TimedItemTiming,
+    ImplementedAs=AnimationNodeTiming,
+    WillBeGarbageCollected,
 ] interface Timing {
     attribute double delay;
     attribute double endDelay;
@@ -20,7 +21,7 @@
     // FIXME: If the user calls animation.specified.duration = "" (empty string) then duration
     // gets set to 0 (This is correct behavior for IDL). Correct result is for duration to
     // be set to 'auto'.
-    [StrictTypeChecking, ImplementedAs=setDuration] setter double (DOMString name, double duration);
+    [TypeChecking=Interface|Nullable, ImplementedAs=setDuration] setter double (DOMString name, double duration);
 
     attribute double playbackRate;
     attribute DOMString direction;