Mojo: Wrap the satisfied/unsatisfied wait flags state in a single object.

mojo/system/waiter_list.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/system/waiter_list.h"
 
 #include "base/logging.h"
+#include "mojo/system/wait_flags_state.h"
 #include "mojo/system/waiter.h"
 
 namespace mojo {
 namespace system {
 
 WaiterList::WaiterList() {
 }
 
 WaiterList::~WaiterList() {
   DCHECK(waiters_.empty());
 }
 
+void WaiterList::AwakeWaitersForStateChange(const WaitFlagsState& state) {
+  for (WaiterInfoList::iterator it = waiters_.begin(); it != waiters_.end();
+       ++it) {
+    if (state.satisfies(it->flags))
+      it->waiter->Awake(it->wake_result);
+    else if (!state.can_satisfy(it->flags))
+      it->waiter->Awake(MOJO_RESULT_FAILED_PRECONDITION);
+  }
+}
+
+//FIXME Remove:
 void WaiterList::AwakeWaitersForStateChange(MojoWaitFlags satisfied_flags,
                                             MojoWaitFlags satisfiable_flags) {
   for (WaiterInfoList::iterator it = waiters_.begin(); it != waiters_.end();
        ++it) {
     if (it->flags & satisfied_flags)
       it->waiter->Awake(it->wake_result);
     else if (!(it->flags & satisfiable_flags))
       it->waiter->Awake(MOJO_RESULT_FAILED_PRECONDITION);
   }
 }
@@ skipping 18 matching lines @@
   for (WaiterInfoList::iterator it = waiters_.begin(); it != waiters_.end();) {
     WaiterInfoList::iterator maybe_delete = it;
     ++it;
     if (maybe_delete->waiter == waiter)
       waiters_.erase(maybe_delete);
   }
 }
 
 }  // namespace system
 }  // namespace mojo