Stop using [Client=...] feature of Mojom for BatteryMonitor

device/battery/battery_monitor_impl.cc

Index: device/battery/battery_monitor_impl.cc
diff --git a/device/battery/battery_monitor_impl.cc b/device/battery/battery_monitor_impl.cc
index dc07b62df1a8a2485016c3a059ee0be294c76c51..bb9976975166718a088b2799f60e775dcf9116cb 100644
--- a/device/battery/battery_monitor_impl.cc
+++ b/device/battery/battery_monitor_impl.cc
@@ -16,21 +16,23 @@ void BatteryMonitorImpl::Create(
 
 BatteryMonitorImpl::BatteryMonitorImpl(
     mojo::InterfaceRequest<BatteryMonitor> request)
-    : binding_(this, request.Pass()),
-      subscription_(BatteryStatusService::GetInstance()->AddCallback(
-          base::Bind(&BatteryMonitorImpl::DidChange, base::Unretained(this)))) {
+    : binding_(this, request.Pass()) {
 }
 
 BatteryMonitorImpl::~BatteryMonitorImpl() {
 }
 
+void BatteryMonitorImpl::SetClient(BatteryMonitorClientPtr client) {
+  client_ = client.Pass();
+  subscription_ = BatteryStatusService::GetInstance()->AddCallback(
+      base::Bind(&BatteryMonitorImpl::DidChange, base::Unretained(this)));
+}
+
 void BatteryMonitorImpl::RegisterSubscription() {
 }
 
 void BatteryMonitorImpl::DidChange(const BatteryStatus& battery_status) {
-  BatteryStatusPtr status(BatteryStatus::New());
-  *status = battery_status;
-  binding_.client()->DidChange(status.Pass());
+  client_->DidChange(battery_status.Clone());
 }
 
 }  // namespace device