gtk: Some code cleanup for the message-pump.

base/message_loop/message_pump_glib.cc

Index: base/message_loop/message_pump_glib.cc
diff --git a/base/message_loop/message_pump_glib.cc b/base/message_loop/message_pump_glib.cc
index cfacb7b09a05eeca0eab6df74eb346869faf8edc..13d8b2b9914093eaeff64d683fcdffb9b75b0dda 100644
--- a/base/message_loop/message_pump_glib.cc
+++ b/base/message_loop/message_pump_glib.cc
@@ -290,14 +290,6 @@ void MessagePumpGlib::HandleDispatch() {
   state_->delegate->DoDelayedWork(&delayed_work_time_);
 }
 
-void MessagePumpGlib::AddObserver(MessagePumpObserver* observer) {
-  observers_.AddObserver(observer);
-}
-
-void MessagePumpGlib::RemoveObserver(MessagePumpObserver* observer) {
-  observers_.RemoveObserver(observer);
-}
-
 void MessagePumpGlib::Run(Delegate* delegate) {
   RunWithDispatcher(delegate, NULL);
 }