Privatize StrongBinding lifetime management

device/generic_sensor/sensor_impl.cc

Index: device/generic_sensor/sensor_impl.cc
diff --git a/device/generic_sensor/sensor_impl.cc b/device/generic_sensor/sensor_impl.cc
index c666aec8958a9d6a8a8988623f1a81e5175d2b90..4b7966974bbd1c61372151f4ad54ba9a81d38645 100644
--- a/device/generic_sensor/sensor_impl.cc
+++ b/device/generic_sensor/sensor_impl.cc
@@ -6,13 +6,12 @@
 
 #include <utility>
 
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
 namespace device {
 
-SensorImpl::SensorImpl(mojo::InterfaceRequest<Sensor> request,
-                       scoped_refptr<PlatformSensor> sensor)
-    : sensor_(std::move(sensor)),
-      binding_(this, std::move(request)),
-      suspended_(false) {
+SensorImpl::SensorImpl(scoped_refptr<PlatformSensor> sensor)
+    : sensor_(std::move(sensor)), suspended_(false) {
   sensor_->AddClient(this);
 }