base: Remove now-unused MessagePumpObserver.

base/message_loop/message_pump_win.cc

Index: base/message_loop/message_pump_win.cc
diff --git a/base/message_loop/message_pump_win.cc b/base/message_loop/message_pump_win.cc
index ae022bf0957f48be47ad16c77b0f0d99693add21..ad422260364db3f31f4c114eeb5511c27cc10579 100644
--- a/base/message_loop/message_pump_win.cc
+++ b/base/message_loop/message_pump_win.cc
@@ -35,22 +35,6 @@ static const int kMsgHaveWork = WM_USER + 1;
 //-----------------------------------------------------------------------------
 // MessagePumpWin public:
 
-void MessagePumpWin::AddObserver(MessagePumpObserver* observer) {
-  observers_.AddObserver(observer);
-}
-
-void MessagePumpWin::RemoveObserver(MessagePumpObserver* observer) {
-  observers_.RemoveObserver(observer);
-}
-
-void MessagePumpWin::WillProcessMessage(const MSG& msg) {
-  FOR_EACH_OBSERVER(MessagePumpObserver, observers_, WillProcessEvent(msg));
-}
-
-void MessagePumpWin::DidProcessMessage(const MSG& msg) {
-  FOR_EACH_OBSERVER(MessagePumpObserver, observers_, DidProcessEvent(msg));
-}
-
 void MessagePumpWin::RunWithDispatcher(
     Delegate* delegate, MessagePumpDispatcher* dispatcher) {
   RunState s;
@@ -369,8 +353,6 @@ bool MessagePumpForUI::ProcessMessageHelper(const MSG& msg) {
   if (CallMsgFilter(const_cast<MSG*>(&msg), kMessageFilterCode))
     return true;
 
-  WillProcessMessage(msg);
-
   uint32_t action = MessagePumpDispatcher::POST_DISPATCH_PERFORM_DEFAULT;
   if (state_->dispatcher)
     action = state_->dispatcher->Dispatch(msg);
@@ -381,7 +363,6 @@ bool MessagePumpForUI::ProcessMessageHelper(const MSG& msg) {
     DispatchMessage(&msg);
   }
 
-  DidProcessMessage(msg);
   return true;
 }