arc: Use GET_INTERFACE_FOR_METHOD macro

chrome/browser/ui/app_list/arc/arc_package_syncable_service.cc

Index: chrome/browser/ui/app_list/arc/arc_package_syncable_service.cc
diff --git a/chrome/browser/ui/app_list/arc/arc_package_syncable_service.cc b/chrome/browser/ui/app_list/arc/arc_package_syncable_service.cc
index ca3dab2760d1afd6c5911ba97cddcac42039ba31..6674fcf689b7652be593a6ad98c3112142981f78 100644
--- a/chrome/browser/ui/app_list/arc/arc_package_syncable_service.cc
+++ b/chrome/browser/ui/app_list/arc/arc_package_syncable_service.cc
@@ -28,9 +28,6 @@ using ArcSyncItem = ArcPackageSyncableService::SyncItem;
 
 constexpr int64_t kNoAndroidID = 0;
 
-constexpr uint32_t kUninstallPackageMinVersion = 2;
-constexpr uint32_t kInstallPackageMinVersion = 8;
-
 std::unique_ptr<ArcSyncItem> CreateSyncItemFromSyncSpecifics(
     const sync_pb::ArcPackageSpecifics& specifics) {
   return base::MakeUnique<ArcSyncItem>(
@@ -405,8 +402,8 @@ void ArcPackageSyncableService::InstallPackage(const ArcSyncItem* sync_item) {
     return;
   }
 
-  auto* instance = prefs_->app_instance_holder()->GetInstanceForMethod(
-      "InstallPackage", kInstallPackageMinVersion);
+  auto* instance = ARC_GET_INSTANCE_FOR_METHOD(prefs_->app_instance_holder(),
+                                               InstallPackage);
   if (!instance)
     return;
 
@@ -427,8 +424,8 @@ void ArcPackageSyncableService::UninstallPackage(const ArcSyncItem* sync_item) {
     return;
   }
 
-  auto* instance = prefs_->app_instance_holder()->GetInstanceForMethod(
-      "UninstallPackage", kUninstallPackageMinVersion);
+  auto* instance = ARC_GET_INSTANCE_FOR_METHOD(prefs_->app_instance_holder(),
+                                               UninstallPackage);
   if (!instance)
     return;