Updated Blink WebVR interfaces to WebVR v1 spec

third_party/WebKit/Source/modules/vr/HMDVRDevice.idl

-// Copyright 2015 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.
-
-enum VREye {
-    "left",
-    "right"
-};
-
-// An HMDVRDevice represents a Head Mounted Display. The interface provides all
-// the information necessary to correctly render a stereo 3D scene for a given
-// headset.
-// http://mozvr.github.io/webvr-spec/webvr.html#hmdvrdevice
-[
-    RuntimeEnabled=WebVR,
-] interface HMDVRDevice : VRDevice {
-    VREyeParameters getEyeParameters(VREye whichEye);
-    void setFieldOfView(optional VRFieldOfView leftFov, optional VRFieldOfView rightFov);
-};