Move OS_WIN specific logic in MessagePumpDefault::Run into waitable_event_win.cc

base/synchronization/waitable_event.h

 // Copyright (c) 2012 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.
 
 #ifndef BASE_SYNCHRONIZATION_WAITABLE_EVENT_H_
 #define BASE_SYNCHRONIZATION_WAITABLE_EVENT_H_
 
 #include <stddef.h>
 
 #include "base/base_export.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_handle.h"
 #endif
 
 #if defined(OS_POSIX)
 #include <list>
 #include <utility>
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #endif
 
 namespace base {
 
 class TimeDelta;
+class TimeTicks;
 
 // A WaitableEvent can be a useful thread synchronization tool when you want to
 // allow one thread to wait for another thread to finish some work. For
 // non-Windows systems, this can only be used from within a single address
 // space.
 //
 // Use a WaitableEvent when you would otherwise use a Lock+ConditionVariable to
 // protect a simple boolean value.  However, if you find yourself using a
 // WaitableEvent in conjunction with a Lock to wait for a more complex state
 // change (e.g., for an item to be added to a queue), then you should probably
@@ skipping 41 matching lines @@
   // Wait indefinitely for the event to be signaled. Wait's return "happens
   // after" |Signal| has completed. This means that it's safe for a
   // WaitableEvent to synchronise its own destruction, like this:
   //
   //   WaitableEvent *e = new WaitableEvent;
   //   SendToOtherThread(e);
   //   e->Wait();
   //   delete e;
   void Wait();
 
-  // Wait up until max_time has passed for the event to be signaled.  Returns
-  // true if the event was signaled.  If this method returns false, then it
-  // does not necessarily mean that max_time was exceeded.
+  // Wait up until wait_delta has passed for the event to be signaled.  Returns
+  // true if the event was signaled.
   //
   // TimedWait can synchronise its own destruction like |Wait|.
-  bool TimedWait(const TimeDelta& max_time);
+  bool TimedWait(const TimeDelta& wait_delta);
+
+  // Wait up until end_time deadline has passed for the event to be signaled.
+  // Return true if the event was signaled.
+  //
+  // TimedWaitUntil can synchronise its own destruction like |Wait|.
+  bool TimedWaitUntil(const TimeTicks& end_time);
 
 #if defined(OS_WIN)
   HANDLE handle() const { return handle_.Get(); }
 #endif
 
   // Wait, synchronously, on multiple events.
   //   waitables: an array of WaitableEvent pointers
   //   count: the number of elements in @waitables
   //
   // returns: the index of a WaitableEvent which has been signaled.
@@ skipping 82 matching lines @@
 
   scoped_refptr<WaitableEventKernel> kernel_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(WaitableEvent);
 };
 
 }  // namespace base
 
 #endif  // BASE_SYNCHRONIZATION_WAITABLE_EVENT_H_