arc: Use GET_INTERFACE_FOR_METHOD macro

components/arc/crash_collector/arc_crash_collector_bridge.cc

 // Copyright 2016 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 "components/arc/crash_collector/arc_crash_collector_bridge.h"
 
 #include <sysexits.h>
 #include <unistd.h>
 
 #include <utility>
@@ skipping 46 matching lines @@
   arc_bridge_service()->crash_collector()->AddObserver(this);
 }
 
 ArcCrashCollectorBridge::~ArcCrashCollectorBridge() {
   arc_bridge_service()->crash_collector()->RemoveObserver(this);
 }
 
 void ArcCrashCollectorBridge::OnInstanceReady() {
   mojom::CrashCollectorHostPtr host_ptr;
   binding_.Bind(mojo::MakeRequest(&host_ptr));
-  auto* instance =
-      arc_bridge_service()->crash_collector()->GetInstanceForMethod("Init");
+  auto* instance = ARC_GET_INSTANCE_FOR_METHOD(
+      arc_bridge_service()->crash_collector(), Init);
   DCHECK(instance);
   instance->Init(std::move(host_ptr));
 }
 
 void ArcCrashCollectorBridge::DumpCrash(const std::string& type,
                                         mojo::ScopedHandle pipe) {
   mojo::edk::ScopedPlatformHandle pipe_handle;
   mojo::edk::PassWrappedPlatformHandle(pipe.release().value(), &pipe_handle);
 
   blocking_task_runner_->PostTask(
       FROM_HERE, base::Bind(&RunCrashReporter, type, device_, board_, cpu_abi_,
                             base::Passed(std::move(pipe_handle))));
 }
 
 void ArcCrashCollectorBridge::SetBuildProperties(const std::string& device,
                                                  const std::string& board,
                                                  const std::string& cpu_abi) {
   device_ = device;
   board_ = board;
   cpu_abi_ = cpu_abi;
 }
 
 }  // namespace arc