Roll IDL to Dartium37 (r181268)

core/animation/Animation.idl

Index: core/animation/Animation.idl
diff --git a/core/animation/Animation.idl b/core/animation/Animation.idl
index ee19ab068e2bc5374881b7371b1d7ae0918cdccc..02b98bf8234570c35b31e85820a75219fe3f3fa4 100644
--- a/core/animation/Animation.idl
+++ b/core/animation/Animation.idl
@@ -28,10 +28,14 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+// http://dev.w3.org/fxtf/web-animations/#idl-def-Animation
+
 [
+    // FIXME: should be optional union type http://crbug.com/240176
+    Constructor(Element? target, sequence<Dictionary> keyframes),
+    Constructor(Element? target, sequence<Dictionary> keyframes, double timingInput),
+    Constructor(Element? target, sequence<Dictionary> keyframes, Dictionary timingInput),
+    RaisesException=Constructor,
     RuntimeEnabled=WebAnimationsAPI,
-    Constructor(Element target, sequence<Dictionary> keyframes, Dictionary timingInput),
-    Constructor(Element target, sequence<Dictionary> keyframes, double timingInput),
-    Constructor(Element target, sequence<Dictionary> keyframes),
-] interface Animation : TimedItem {
+] interface Animation : AnimationNode {
 };