chromeos: Refactor D-Bus client creation for ash and browser processes

ash/shell/content/client/shell_browser_main_parts.cc

 // Copyright (c) 2012 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 "ash/shell/content/client/shell_browser_main_parts.h"
 
 #include "ash/common/login_status.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/content/shell_content_state.h"
 #include "ash/shell.h"
@@ skipping 78 matching lines @@
 ShellBrowserMainParts::~ShellBrowserMainParts() {}
 
 void ShellBrowserMainParts::PreMainMessageLoopStart() {
 #if defined(USE_X11)
   ui::TouchFactory::SetTouchDeviceListFromCommandLine();
 #endif
 }
 
 void ShellBrowserMainParts::PostMainMessageLoopStart() {
 #if defined(OS_CHROMEOS)
-  chromeos::DBusThreadManager::Initialize();
+  chromeos::DBusThreadManager::Initialize(
+      chromeos::DBusThreadManager::PROCESS_ASH);
 #endif
 }
 
 void ShellBrowserMainParts::ToolkitInitialized() {
   ash::MaterialDesignController::Initialize();
   wm_state_.reset(new ::wm::WMState);
 }
 
 void ShellBrowserMainParts::PreMainMessageLoopRun() {
   net_log_.reset(new content::ShellNetLog("ash_shell"));
@@ skipping 60 matching lines @@
   browser_context_.reset();
 }
 
 bool ShellBrowserMainParts::MainMessageLoopRun(int* result_code) {
   base::RunLoop().Run();
   return true;
 }
 
 }  // namespace shell
 }  // namespace ash