Added non-prefixed navigator.getGamepads() with updated API

Source/modules/gamepad/Gamepad.idl

Index: Source/modules/gamepad/Gamepad.idl
diff --git a/Source/modules/gamepad/Gamepad.idl b/Source/modules/gamepad/Gamepad.idl
index 0645324fd719555dfb332be2a08023512c6c83e4..1b3597b809aa77bd12c15c78715f09905716fcc6 100644
--- a/Source/modules/gamepad/Gamepad.idl
+++ b/Source/modules/gamepad/Gamepad.idl
@@ -1,38 +1,8 @@
-/*
- * Copyright (C) 2011, Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- */
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
-[
-    WillBeGarbageCollected,
-    NoInterfaceObject
-] interface Gamepad {
-    readonly attribute DOMString id;
-    readonly attribute unsigned long index;
-    readonly attribute boolean connected;
-    readonly attribute unsigned long long timestamp;
-    readonly attribute DOMString mapping;
-    readonly attribute float[] axes;
-    readonly attribute float[] buttons;
+interface Gamepad : GamepadBase {
+    readonly attribute GamepadButton[] buttons;
 };