Automated IWYU fix for TaskRunner includes.

device/generic_sensor/sensor_provider_impl.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_SENSOR_PROVIDER_IMPL_H_
 #define DEVICE_GENERIC_SENSOR_SENSOR_PROVIDER_IMPL_H_
 
 #include "base/macros.h"
+#include "base/single_thread_task_runner.h"
 #include "device/generic_sensor/generic_sensor_export.h"
 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom.h"
 
 namespace device {
 
 class PlatformSensorProvider;
 class PlatformSensor;
 
 // Implementation of SensorProvider mojo interface.
 // Uses PlatformSensorProvider singleton to create platform specific instances
@@ skipping 24 matching lines @@
 
   PlatformSensorProvider* provider_;
   base::WeakPtrFactory<SensorProviderImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SensorProviderImpl);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_GENERIC_SENSOR_SENSOR_PROVIDER_IMPL_H_