Implement WebVR presentation pausing for VR Shell Menu Mode

device/vr/test/fake_vr_device_provider.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 DEVICE_VR_TEST_FAKE_VR_DEVICE_PROVIDER_H_
 #define DEVICE_VR_TEST_FAKE_VR_DEVICE_PROVIDER_H_
 
 #include <vector>
 #include "device/vr/vr_device.h"
 #include "device/vr/vr_device_provider.h"
 
 namespace device {
 
 class FakeVRDeviceProvider : public VRDeviceProvider {
  public:
   FakeVRDeviceProvider();
-  ~FakeVRDeviceProvider() override;
 
   // Adds devices to the provider with the given device, which will be
   // returned when GetDevices is queried.
   void AddDevice(VRDevice* device);
   void RemoveDevice(VRDevice* device);
   bool IsInitialized() { return initialized_; }
 
   void GetDevices(std::vector<VRDevice*>* devices) override;
   void Initialize() override;
 
  private:
+  ~FakeVRDeviceProvider() override;
+
   std::vector<VRDevice*> devices_;
   bool initialized_;
 };
 
 }  // namespace device
 
 #endif  // DEVICE_VR_TEST_FAKE_VR_DEVICE_PROVIDER_H_