Implement RegisterComponent method call.

chromeos/dbus/ibus/ibus_client.h

Index: chromeos/dbus/ibus/ibus_client.h
diff --git a/chromeos/dbus/ibus/ibus_client.h b/chromeos/dbus/ibus/ibus_client.h
index 5286b1237797e0babd5938f0294886c693a47f06..3805b1c63b0f571c8f948a0a7102c8c402af5191 100644
--- a/chromeos/dbus/ibus/ibus_client.h
+++ b/chromeos/dbus/ibus/ibus_client.h
@@ -20,6 +20,10 @@ class Bus;
 
 namespace chromeos {
 
+namespace ibus {
+class IBusComponent;
+}  // namespace ibus
+
 class IBusInputContextClient;
 
 // A class to make the actual DBus calls for IBusBus service.
@@ -29,6 +33,7 @@ class CHROMEOS_EXPORT IBusClient {
  public:
   typedef base::Callback<void(const dbus::ObjectPath&)>
       CreateInputContextCallback;
+  typedef base::Callback<void()> RegisterComponentCallback;
   typedef base::Callback<void()> ErrorCallback;
 
   virtual ~IBusClient();
@@ -41,6 +46,13 @@ class CHROMEOS_EXPORT IBusClient {
       const CreateInputContextCallback& callback,
       const ErrorCallback& error_callback) = 0;
 
+  // Requests the ibus-daemon to register new engine object. If succeeded,
+  // |callback| will be called. If failed, |error_callback| is called instead.
+  virtual void RegisterComponent(
+      const ibus::IBusComponent& ibus_component,
+      const RegisterComponentCallback& callback,
+      const ErrorCallback& error_callback) = 0;
+
   // Factory function, creates a new instance and returns ownership.
   // For normal usage, access the singleton via DBusThreadManager::Get().
   static CHROMEOS_EXPORT IBusClient* Create(DBusClientImplementationType type,