Reland: Refactor DeviceMotionEventPump to use //device/generic_sensor instead of //device/sensors

device/generic_sensor/platform_sensor_provider_android.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_ANDROID_H_
 #define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_ANDROID_H_
 
 #include "device/generic_sensor/platform_sensor_provider.h"
 
 #include "base/android/scoped_java_ref.h"
+#include "device/generic_sensor/generic_sensor_export.h"
 
 namespace device {
 
-class PlatformSensorProviderAndroid : public PlatformSensorProvider {
+class DEVICE_GENERIC_SENSOR_EXPORT PlatformSensorProviderAndroid
+    : public PlatformSensorProvider {
  public:
   PlatformSensorProviderAndroid();
   ~PlatformSensorProviderAndroid() override;
 
   static PlatformSensorProviderAndroid* GetInstance();
 
+  void SetSensorManagerToNullForTesting();
+
  protected:
   void CreateSensorInternal(mojom::SensorType type,
                             mojo::ScopedSharedBufferMapping mapping,
                             const CreateSensorCallback& callback) override;
 
  private:
   // Java object org.chromium.device.sensors.PlatformSensorProvider
   base::android::ScopedJavaGlobalRef<jobject> j_object_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformSensorProviderAndroid);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_ANDROID_H_