arc: Use GET_INTERFACE_FOR_METHOD macro

chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.cc

Index: chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.cc
diff --git a/chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.cc b/chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.cc
index 22851d7f20bdd63ef45472eecf602e4b32aadb6d..7134f5fc2a92b38ffde1a225a5df77895d0955fd 100644
--- a/chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.cc
+++ b/chrome/browser/chromeos/arc/video/gpu_arc_video_service_host.cc
@@ -72,7 +72,7 @@ GpuArcVideoServiceHost::~GpuArcVideoServiceHost() {
 void GpuArcVideoServiceHost::OnInstanceReady() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   auto* video_instance =
-      arc_bridge_service()->video()->GetInstanceForMethod("Init");
+      ARC_GET_INSTANCE_FOR_METHOD(arc_bridge_service()->video(), Init);
   DCHECK(video_instance);
   video_instance->Init(binding_.CreateInterfacePtrAndBind());
 }