Remove base::NonThreadSafe from //device/generic_sensor/

device/generic_sensor/platform_sensor_provider_base.h

 // 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.
 
 #ifndef DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_BASE_H_
 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_BASE_H_
 
 #include "base/macros.h"
 
-#include "base/threading/non_thread_safe.h"
+#include "base/threading/thread_checker.h"
 #include "device/generic_sensor/generic_sensor_export.h"
 #include "device/generic_sensor/platform_sensor.h"
 
 namespace device {
 
 // Base class that defines factory methods for PlatformSensor creation.
 // Its implementations must be accessed via GetInstance() method.
-class DEVICE_GENERIC_SENSOR_EXPORT PlatformSensorProviderBase
-    : public base::NonThreadSafe {
+class DEVICE_GENERIC_SENSOR_EXPORT PlatformSensorProviderBase {
  public:
   using CreateSensorCallback =
       base::Callback<void(scoped_refptr<PlatformSensor>)>;
 
   // Creates new instance of PlatformSensor.
   void CreateSensor(mojom::SensorType type,
                     const CreateSensorCallback& callback);
 
   // Gets previously created instance of PlatformSensor by sensor type |type|.
   scoped_refptr<PlatformSensor> GetSensor(mojom::SensorType type);
@@ skipping 24 matching lines @@
   virtual void AllSensorsRemoved() {}
 
   void NotifySensorCreated(mojom::SensorType type,
                            scoped_refptr<PlatformSensor> sensor);
 
   std::vector<mojom::SensorType> GetPendingRequestTypes();
 
   mojo::ScopedSharedBufferMapping MapSharedBufferForType(
       mojom::SensorType type);
 
+  THREAD_CHECKER(thread_checker_);
+
  private:
   friend class PlatformSensor;  // To call RemoveSensor();
 
   bool CreateSharedBufferIfNeeded();
   void RemoveSensor(mojom::SensorType type);
 
  private:
   using CallbackQueue = std::vector<CreateSensorCallback>;
 
   std::map<mojom::SensorType, PlatformSensor*> sensor_map_;
   std::map<mojom::SensorType, CallbackQueue> requests_map_;
   mojo::ScopedSharedBufferHandle shared_buffer_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformSensorProviderBase);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_BASE_H_