Always use arc::InstanceHolder<T>::GetInstanceForMethod

components/arc/ime/arc_ime_bridge_impl.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/ime/arc_ime_bridge_impl.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 70 matching lines @@
                                    ArcBridgeService* bridge_service)
     : binding_(this), delegate_(delegate), bridge_service_(bridge_service) {
   bridge_service_->ime()->AddObserver(this);
 }
 
 ArcImeBridgeImpl::~ArcImeBridgeImpl() {
   bridge_service_->ime()->RemoveObserver(this);
 }
 
 void ArcImeBridgeImpl::OnInstanceReady() {
-  bridge_service_->ime()->instance()->Init(
-      binding_.CreateInterfacePtrAndBind());
+  auto* instance = bridge_service_->ime()->GetInstanceForMethod("Init");
+  DCHECK(instance);
+  instance->Init(binding_.CreateInterfacePtrAndBind());
 }
 
 void ArcImeBridgeImpl::SendSetCompositionText(
     const ui::CompositionText& composition) {
   auto* ime_instance =
       bridge_service_->ime()->GetInstanceForMethod("SetCompositionText");
   if (!ime_instance)
     return;
 
   ime_instance->SetCompositionText(base::UTF16ToUTF8(composition.text),
@@ skipping 50 matching lines @@
 
 void ArcImeBridgeImpl::OnCancelComposition() {
   delegate_->OnCancelComposition();
 }
 
 void ArcImeBridgeImpl::ShowImeIfNeeded() {
   delegate_->ShowImeIfNeeded();
 }
 
 }  // namespace arc