add animationframe type definition file

animationframe/animationframe-tests.ts

@@ -0,0 +1,9 @@
+/// <reference path="animationframe.d.ts"/>
+module AnimationFrameTests {
+  var animation = new AnimationFrame();
+  function frame() {
+    animation.request(frame);
+  }
+
+  animation.request(frame);
+}

animationframe/animationframe.d.ts

@@ -0,0 +1,12 @@
+// Type definitions for animation-frame 0.1.7
+// Project: https://github.com/kof/animation-frame
+// Definitions by: Qinfeng Chen <https://github.com/qinfchen>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface AnimationFrame {
+    new(): AnimationFrame;
+    request(callback: () => void): void;
+}
+
+declare var AnimationFrame: AnimationFrame;
+