arc-bridge: Introduce the ArcService class

components/arc/ime/arc_ime_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/ime/arc_ime_bridge.h"
 
 #include "base/logging.h"
 #include "components/arc/ime/arc_ime_ipc_host_impl.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/env.h"
@@ skipping 13 matching lines @@
 // stabilized.
 bool IsArcWindow(const aura::Window* window) {
   return window->name() == "ExoSurface";
 }
 
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // ArcImeBridge main implementation:
 
-ArcImeBridge::ArcImeBridge(ArcBridgeService* arc_bridge_service)
-    : ipc_host_(new ArcImeIpcHostImpl(this, arc_bridge_service)),
+ArcImeBridge::ArcImeBridge(ArcBridgeService* bridge_service)
+    : ArcService(bridge_service),
+      ipc_host_(new ArcImeIpcHostImpl(this, bridge_service)),
       ime_type_(ui::TEXT_INPUT_TYPE_NONE),
       has_composition_text_(false) {
   aura::Env* env = aura::Env::GetInstanceDontCreate();
   if (env)
     env->AddObserver(this);
 }
 
 ArcImeBridge::~ArcImeBridge() {
   ui::InputMethod* const input_method = GetInputMethod();
   if (input_method)
@@ skipping 178 matching lines @@
 bool ArcImeBridge::ChangeTextDirectionAndLayoutAlignment(
     base::i18n::TextDirection direction) {
   return false;
 }
 
 bool ArcImeBridge::IsEditCommandEnabled(int command_id) {
   return false;
 }
 
 }  // namespace arc