Decouple input_method from BrowserThread (and content/).

chrome/browser/chromeos/input_method/input_method_manager_impl.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 "chrome/browser/chromeos/input_method/input_method_manager_impl.h"
 
 #include <algorithm>  // std::find
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/sequenced_task_runner.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/chromeos/input_method/candidate_window_controller.h"
 #include "chrome/browser/chromeos/input_method/input_method_delegate.h"
 #include "chrome/browser/chromeos/input_method/input_method_engine_ibus.h"
 #include "chrome/browser/chromeos/input_method/xkeyboard.h"
 #include "chrome/browser/chromeos/language_preferences.h"
 #include "ui/base/accelerators/accelerator.h"
 #include "unicode/uloc.h"
 
@@ skipping 551 matching lines @@
        ite != extra_input_method_instances_.end();
        ite++) {
     if (!Contains(filtered_extension_imes_, ite->first))
       ite->second->OnDisconnected();
   }
 }
 
 void InputMethodManagerImpl::Init() {
   DCHECK(!ibus_controller_.get());
 
-  ibus_controller_.reset(IBusController::Create());
-  xkeyboard_.reset(XKeyboard::Create(util_));
+  ibus_controller_.reset(IBusController::Create(
+      delegate_->GetDefaultTaskRunner(), delegate_->GetWorkerTaskRunner()));
+  xkeyboard_.reset(XKeyboard::Create(util_, delegate_->GetDefaultTaskRunner()));
   ibus_controller_->AddObserver(this);
 }
 
 void InputMethodManagerImpl::SetIBusControllerForTesting(
     IBusController* ibus_controller) {
   ibus_controller_.reset(ibus_controller);
   ibus_controller_->AddObserver(this);
 }
 
 void InputMethodManagerImpl::SetCandidateWindowControllerForTesting(
@@ skipping 82 matching lines @@
   candidate_window_controller_.reset(
       CandidateWindowController::CreateCandidateWindowController());
   if (candidate_window_controller_->Init(ibus_controller_.get()))
     candidate_window_controller_->AddObserver(this);
   else
     DVLOG(1) << "Failed to initialize the candidate window controller";
 }
 
 }  // namespace input_method
 }  // namespace chromeos