Decouple input_method from BrowserThread (and content/).

chrome/browser/chromeos/input_method/ibus_controller.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_IBUS_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_IBUS_CONTROLLER_H_
 
 #include <string>
 #include <utility>
 #include <vector>
 
+#include "base/memory/ref_counted.h"
+
+namespace base {
+class SequencedTaskRunner;
+}  // namespace base
+
 namespace chromeos {
 namespace input_method {
 
 struct InputMethodConfigValue;
 struct InputMethodProperty;
 typedef std::vector<InputMethodProperty> InputMethodPropertyList;
 
 // IBusController is used to interact with the system input method framework
 // (which is currently IBus).
 class IBusController {
  public:
   class Observer {
    public:
     virtual ~Observer() {}
     virtual void PropertyChanged() = 0;
     virtual void OnConnected() = 0;
     virtual void OnDisconnected() = 0;
     // TODO(yusukes): Add functions for IPC error handling.
   };
 
   // Creates an instance of the class.
-  static IBusController* Create();
+  static IBusController* Create(
+      const scoped_refptr<base::SequencedTaskRunner>& default_task_runner,
+      const scoped_refptr<base::SequencedTaskRunner>& worker_task_runner);
 
   virtual ~IBusController();
 
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
 
   // Starts the system input method framework. No-op if it's already started.
   virtual bool Start() = 0;
 
   // Resets the system input method framework. A composition text is discarded,
@@ skipping 24 matching lines @@
   virtual const InputMethodPropertyList& GetCurrentProperties() const = 0;
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 // TODO(yusukes,nona): This interface does not depend on IBus actually.
 // Rename the file if needed.
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_IBUS_CONTROLLER_H_