Mojo: MojoWaitFlags -> MojoHandleSignals.

mojo/system/message_pipe_dispatcher.cc

Index: mojo/system/message_pipe_dispatcher.cc
diff --git a/mojo/system/message_pipe_dispatcher.cc b/mojo/system/message_pipe_dispatcher.cc
index 00d743f6cb33d133e1bc56650449e86089efbe6b..484613ca5d195636feadd64c17b7057047ca2706 100644
--- a/mojo/system/message_pipe_dispatcher.cc
+++ b/mojo/system/message_pipe_dispatcher.cc
@@ -217,10 +217,10 @@ MojoResult MessagePipeDispatcher::ReadMessageImplNoLock(
 }
 
 MojoResult MessagePipeDispatcher::AddWaiterImplNoLock(Waiter* waiter,
-                                                      MojoWaitFlags flags,
+                                                      MojoHandleSignals signals,
                                                       uint32_t context) {
   lock().AssertAcquired();
-  return message_pipe_->AddWaiter(port_, waiter, flags, context);
+  return message_pipe_->AddWaiter(port_, waiter, signals, context);
 }
 
 void MessagePipeDispatcher::RemoveWaiterImplNoLock(Waiter* waiter) {