ChromeOS: Remove unused IBus classes from chromeos/.

chrome/browser/chromeos/input_method/input_method_engine_ibus.h

Index: chrome/browser/chromeos/input_method/input_method_engine_ibus.h
diff --git a/chrome/browser/chromeos/input_method/input_method_engine_ibus.h b/chrome/browser/chromeos/input_method/input_method_engine_ibus.h
index 12536134c63390ac4fc2dd66d93573b4a809ca45..3807e0bad0ebfb125ef4716dfc0ded8f54cbd3bc 100644
--- a/chrome/browser/chromeos/input_method/input_method_engine_ibus.h
+++ b/chrome/browser/chromeos/input_method/input_method_engine_ibus.h
@@ -19,7 +19,9 @@ namespace chromeos {
 class IBusComponent;
 class IBusText;
 
+class IBusEngineFactoryService;
 class IBusEngineService;
+
 namespace input_method {
 class CandidateWindow;
 struct KeyEventHandle;
@@ -177,6 +179,9 @@ class InputMethodEngineIBus : public InputMethodEngine,
   // Mapping of candidate id to index.
   std::map<int, int> candidate_indexes_;
 
+  scoped_ptr<IBusEngineService> ibus_engine_service_;
+  scoped_ptr<IBusEngineFactoryService> ibus_engine_factory_service_;
+
   // Used for making callbacks.
   base::WeakPtrFactory<InputMethodEngineIBus> weak_ptr_factory_;
 };