[sensors] Add a browser test to sanity check ambient light sensor.

device/generic_sensor/platform_sensor_provider_android.cc

 // 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.
 
-#include "device/generic_sensor/platform_sensor_provider.h"
+#include "device/generic_sensor/platform_sensor_provider_android.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/singleton.h"
 #include "device/generic_sensor/platform_sensor_android.h"
 #include "jni/PlatformSensorProvider_jni.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ScopedJavaLocalRef;
 
 namespace device {
 
-class PlatformSensorProviderAndroid : public PlatformSensorProvider {
- public:
-  PlatformSensorProviderAndroid();
-  ~PlatformSensorProviderAndroid() override;
-
-  static PlatformSensorProviderAndroid* GetInstance();
-
- 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);
-};
-
-// static
-PlatformSensorProvider* PlatformSensorProvider::GetInstance() {
-  return PlatformSensorProviderAndroid::GetInstance();
-}
-
 // static
 PlatformSensorProviderAndroid* PlatformSensorProviderAndroid::GetInstance() {
   return base::Singleton<
       PlatformSensorProviderAndroid,
       base::LeakySingletonTraits<PlatformSensorProviderAndroid>>::get();
 }
 
 PlatformSensorProviderAndroid::PlatformSensorProviderAndroid() {
   JNIEnv* env = AttachCurrentThread();
   j_object_.Reset(Java_PlatformSensorProvider_create(
@@ skipping 12 matching lines @@
 
   if (!sensor.obj())
     callback.Run(nullptr);
 
   scoped_refptr<PlatformSensorAndroid> concrete_sensor =
       new PlatformSensorAndroid(type, std::move(mapping), this, sensor);
   callback.Run(concrete_sensor);
 }
 
 }  // namespace device