Adding WebVR interface to Blink

Source/modules/vr/HMDVRDevice.idl

+// 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.
+
+enum VREye {
+    "left",
+    "right"
+};
+
+[
+    RuntimeEnabled=VRDevice,
+    GarbageCollected,
+    TypeChecking=Interface
+] interface HMDVRDevice : VRDevice {

[sof, 2015/02/24 12:35:29]

"HMD" - could you spell out that acronym here or in the header file?

+    DOMPoint getEyeTranslation(VREye whichEye);
+    VRFieldOfView getCurrentEyeFieldOfView(VREye whichEye);
+    VRFieldOfView getRecommendedEyeFieldOfView(VREye whichEye);
+    VRFieldOfView getMaximumEyeFieldOfView(VREye whichEye);
+    DOMRect getRecommendedEyeRenderRect(VREye whichEye);
+    void setFieldOfView(optional VRFieldOfView leftFov, optional VRFieldOfView rightFov);
+};