Updated Blink WebVR interfaces to WebVR v1 spec

third_party/WebKit/Source/modules/vr/VRGetDevicesCallback.h

 // 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.
 
 #ifndef VRGetDevicesCallback_h
 #define VRGetDevicesCallback_h
 
 #include "platform/heap/Handle.h"
 #include "public/platform/WebCallbacks.h"
 #include "public/platform/WebVector.h"
 #include "public/platform/modules/vr/WebVR.h"
 
 namespace blink {
 
-class VRHardwareUnitCollection;
+class VRDisplayCollection;
 class ScriptPromiseResolver;
 
 // Success and failure callbacks for getDevices.
 using WebVRGetDevicesCallback = WebCallbacks<const WebVector<WebVRDevice>&, void>;
 class VRGetDevicesCallback final : public WebVRGetDevicesCallback {
     USING_FAST_MALLOC(VRGetDevicesCallback);
 public:
-    VRGetDevicesCallback(ScriptPromiseResolver*, VRHardwareUnitCollection*);
+    VRGetDevicesCallback(ScriptPromiseResolver*, VRDisplayCollection*);
     ~VRGetDevicesCallback() override;
 
     void onSuccess(const WebVector<WebVRDevice>&) override;
     void onError() override;
 
 private:
     Persistent<ScriptPromiseResolver> m_resolver;
-    Persistent<VRHardwareUnitCollection> m_hardwareUnits;
+    Persistent<VRDisplayCollection> m_displays;
 };
 
 } // namespace blink
 
 #endif // VRGetDevicesCallback_h