Updated Blink WebVR interfaces to WebVR v1 spec

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

+// Copyright 2016 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"
+};
+
+// http://mozvr.github.io/webvr-spec/webvr.html#vrdisplay
+[
+    RuntimeEnabled=WebVR
+] interface VRDisplay {
+    // An identifier for this device unique across VRDisplays.
+    readonly attribute unsigned long displayId;
+
+    // A user-readable name identifying the device.
+    readonly attribute DOMString displayName;
+
+    readonly attribute boolean isConnected;
+    readonly attribute boolean isPresenting;
+
+    // [Constant]?
+    readonly attribute VRDisplayCapabilities capabilities;
+
+    readonly attribute VRStageParameters stageParameters;
+
+    VRPose getPose();
+    VRPose getImmediatePose();
+    void resetPose();
+
+    VREyeParameters getEyeParameters(VREye whichEye);
+
+    long requestAnimationFrame(FrameRequestCallback callback);
+    void cancelAnimationFrame(long handle);
+
+    // Begin presenting to the VRDisplay. Must be called in response to a user gesture.
+    // Repeat calls while already presenting will update the VRLayer being displayed.
+    [CallWith=ScriptState] Promise requestPresent(sequence<VRLayer> layers);
+
+    // Stops presenting to the VRDisplay.
+    [CallWith=ScriptState] Promise exitPresent();
+
+    // Get the sources currently being presented.
+    sequence<VRLayer> getLayers();
+
+    // The VRLayer provided to the `VRDisplay` will be captured and presented
+    // in the HMD. Calling this function has the same effect on the source
+    // canvas as any other operation that uses its source image, and canvases
+    // created without preserveDrawingBuffer set to true will be cleared.
+    void submitFrame(optional VRPose pose = null);
+};