arc: Use GET_INTERFACE_FOR_METHOD macro

components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.cc

Index: components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.cc
diff --git a/components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.cc b/components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.cc
index e4af76afec3fd02570d2a38d38850d913fabe717..dbcc7947383990ef92ea89488829390122f5e6eb 100644
--- a/components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.cc
+++ b/components/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.cc
@@ -36,7 +36,7 @@ ArcBootPhaseMonitorBridge::~ArcBootPhaseMonitorBridge() {
 void ArcBootPhaseMonitorBridge::OnInstanceReady() {
   DCHECK(thread_checker_.CalledOnValidThread());
   auto* instance =
-      arc_bridge_service()->boot_phase_monitor()->GetInstanceForMethod("Init");
+      GET_INSTANCE_FOR_METHOD(arc_bridge_service()->boot_phase_monitor(), Init);
   DCHECK(instance);
   instance->Init(binding_.CreateInterfacePtrAndBind());
 }