Makes IBusConfigClient initialize asynchronous.

chromeos/dbus/ibus/ibus_config_client.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 CHROMEOS_DBUS_IBUS_IBUS_CONFIG_CLIENT_H_
 #define CHROMEOS_DBUS_IBUS_IBUS_CONFIG_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 12 matching lines @@
 namespace ibus {
 class IBusComponent;
 }  // namespace ibus
 
 class IBusInputContextClient;
 
 // A class to make the actual DBus calls for IBusConfig service.
 class CHROMEOS_EXPORT IBusConfigClient {
  public:
   typedef base::Callback<void()> ErrorCallback;
+  typedef base::Callback<void()> OnIBusConfigReady;
   virtual ~IBusConfigClient();
 
+  // Initializes IBusConfig asynchronously. |on_ready| will be called if it is
+  // ready.
+  virtual void InitializeAsync(const OnIBusConfigReady& on_ready) = 0;
+
   // Requests the IBusConfig to set a string value.
   virtual void SetStringValue(const std::string& section,
                               const std::string& key,
                               const std::string& value,
                               const ErrorCallback& error_callback) = 0;
 
   // Requests the IBusConfig to set a integer value.
   virtual void SetIntValue(const std::string& section,
                            const std::string& key,
                            int value,
@@ skipping 20 matching lines @@
  protected:
   // Create() should be used instead.
   IBusConfigClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(IBusConfigClient);
 };
 
 }  // namespace chromeos
 
-#endif  // CHROMEOS_DBUS_IBUS_IBUS_CLIENT_H_
+#endif  // CHROMEOS_DBUS_IBUS_IBUS_CONFIG_CLIENT_H_