Add mojom module suffix in .mojom files in content.

content/browser/vr/vr_device.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 CONTENT_BROWSER_VR_VR_DEVICE_H
 #define CONTENT_BROWSER_VR_VR_DEVICE_H
 
 #include "base/macros.h"
 #include "content/common/vr_service.mojom.h"
 
@@ skipping 12 matching lines @@
 const unsigned int VR_DEVICE_LAST_ID = 0xFFFFFFFF;
 
 class VRDevice {
  public:
   explicit VRDevice(VRDeviceProvider* provider);
   virtual ~VRDevice();
 
   VRDeviceProvider* provider() const { return provider_; }
   unsigned int id() const { return id_; }
 
-  virtual VRDeviceInfoPtr GetVRDevice() = 0;
-  virtual VRSensorStatePtr GetSensorState() = 0;
+  virtual mojom::VRDeviceInfoPtr GetVRDevice() = 0;
+  virtual mojom::VRSensorStatePtr GetSensorState() = 0;
   virtual void ResetSensor() = 0;
 
  private:
   VRDeviceProvider* provider_;
   unsigned int id_;
 
   static unsigned int next_id_;
 
   DISALLOW_COPY_AND_ASSIGN(VRDevice);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_VR_VR_DEVICE_H