arc: Use GET_INTERFACE_FOR_METHOD macro

chrome/browser/memory/tab_manager_delegate_chromeos.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/memory/tab_manager_delegate_chromeos.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 46 matching lines @@
 
 const char kExoShellSurfaceWindowName[] = "ExoShellSurface";
 const char kArcProcessNamePrefix[] = "org.chromium.arc.";
 
 // When switching to a new tab the tab's renderer's OOM score needs to be
 // updated to reflect its front-most status and protect it from discard.
 // However, doing this immediately might slow down tab switch time, so wait
 // a little while before doing the adjustment.
 const int kFocusedProcessScoreAdjustIntervalMs = 500;
 
-const uint32_t kMinVersionForKillProcess = 1;
-
 aura::client::ActivationClient* GetActivationClient() {
   if (!ash::Shell::HasInstance())
     return nullptr;
   return aura::client::GetActivationClient(ash::Shell::GetPrimaryRootWindow());
 }
 
 // Checks if a window renders ARC apps.
 bool IsArcWindow(aura::Window* window) {
   if (!window || window->GetName() != kExoShellSurfaceWindowName)
     return false;
@@ skipping 464 matching lines @@
   std::sort(candidates.begin(), candidates.end());
 
   return candidates;
 }
 
 bool TabManagerDelegate::KillArcProcess(const int nspid) {
   auto* arc_service_manager = arc::ArcServiceManager::Get();
   if (!arc_service_manager)
     return false;
 
-  auto* arc_process_instance =
-      arc_service_manager->arc_bridge_service()
-          ->process()
-          ->GetInstanceForMethod("KillProcess", kMinVersionForKillProcess);
+  auto* arc_process_instance = GET_INSTANCE_FOR_METHOD(
+      arc_service_manager->arc_bridge_service()->process(), KillProcess);
   if (!arc_process_instance)
     return false;
 
   arc_process_instance->KillProcess(nspid, "LowMemoryKill");
   return true;
 }
 
 bool TabManagerDelegate::KillTab(int64_t tab_id) {
   // Check |tab_manager_| is alive before taking tabs into consideration.
   return tab_manager_ &&
@@ skipping 151 matching lines @@
     }
     priority += priority_increment;
   }
 
   if (oom_scores_to_change.size())
     GetDebugDaemonClient()->SetOomScoreAdj(
         oom_scores_to_change, base::Bind(&OnSetOomScoreAdj));
 }
 
 }  // namespace memory