[Sensors] Improvements in shared buffer managing

device/generic_sensor/fake_platform_sensor_provider.cc

Index: device/generic_sensor/fake_platform_sensor_provider.cc
diff --git a/device/generic_sensor/fake_platform_sensor_provider.cc b/device/generic_sensor/fake_platform_sensor_provider.cc
index 37c19de5bbe05443ec07315a10bd3362b35638a1..d5effe0b8ec50e674d7d1d121aa4e6d942e1c746 100644
--- a/device/generic_sensor/fake_platform_sensor_provider.cc
+++ b/device/generic_sensor/fake_platform_sensor_provider.cc
@@ -23,10 +23,9 @@ FakePlatformSensorProvider::~FakePlatformSensorProvider() = default;
 void FakePlatformSensorProvider::CreateSensorInternal(
     mojom::SensorType type,
     mojo::ScopedSharedBufferMapping mapping,
-    uint64_t buffer_size,
     const CreateSensorCallback& callback) {
   scoped_refptr<FakePlatformSensor> sensor =
-      new FakePlatformSensor(type, std::move(mapping), buffer_size, this);
+      new FakePlatformSensor(type, std::move(mapping), this);
   callback.Run(std::move(sensor));
 }