Use OnceCallback on Mojo interfaces in //device/gamepad

device/gamepad/gamepad_monitor.cc

Index: device/gamepad/gamepad_monitor.cc
diff --git a/device/gamepad/gamepad_monitor.cc b/device/gamepad/gamepad_monitor.cc
index 0f85717716e38b0fb96f4bc9a08ad5a4668bb88c..7ba2e834915ca9c0fe687b07d1f06479792099f7 100644
--- a/device/gamepad/gamepad_monitor.cc
+++ b/device/gamepad/gamepad_monitor.cc
@@ -4,6 +4,8 @@
 
 #include "device/gamepad/gamepad_monitor.h"
 
+#include <utility>
+
 #include "base/memory/ptr_util.h"
 #include "base/memory/shared_memory.h"
 #include "device/gamepad/gamepad_service.h"
@@ -38,23 +40,21 @@ void GamepadMonitor::OnGamepadDisconnected(unsigned index,
     gamepad_observer_->GamepadDisconnected(index, gamepad);
 }
 
-void GamepadMonitor::GamepadStartPolling(
-    const GamepadStartPollingCallback& callback) {
+void GamepadMonitor::GamepadStartPolling(GamepadStartPollingCallback callback) {
   DCHECK(!is_started_);
   is_started_ = true;
 
   GamepadService* service = GamepadService::GetInstance();
   service->ConsumerBecameActive(this);
-  callback.Run(service->GetSharedBufferHandle());
+  std::move(callback).Run(service->GetSharedBufferHandle());
 }
 
-void GamepadMonitor::GamepadStopPolling(
-    const GamepadStopPollingCallback& callback) {
+void GamepadMonitor::GamepadStopPolling(GamepadStopPollingCallback callback) {
   DCHECK(is_started_);
   is_started_ = false;
 
   GamepadService::GetInstance()->ConsumerBecameInactive(this);
-  callback.Run();
+  std::move(callback).Run();
 }
 
 void GamepadMonitor::SetObserver(mojom::GamepadObserverPtr gamepad_observer) {