Allow XHR timeout attribute to be overridden after send(), per spec

Source/platform/Timer.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
 
 class TimerHeapElement;
 
 class PLATFORM_EXPORT TimerBase {
     WTF_MAKE_NONCOPYABLE(TimerBase); WTF_MAKE_FAST_ALLOCATED;
 public:
     TimerBase();
     virtual ~TimerBase();
 
     void start(double nextFireInterval, double repeatInterval, const TraceLocation&);
+    void startExact(double nextFireInterval, double repeatInterval, const TraceLocation& caller);

[Daniel Bratell, 2014/05/09 13:54:45]

As a user of this API I would wonder about the difference between start and
startExact.

Note that I'm not an owner of this code or the XHR code so my opinions are not
normative. :-)

 
     void startRepeating(double repeatInterval, const TraceLocation& caller)
     {
         start(repeatInterval, repeatInterval, caller);
     }
     void startOneShot(double interval, const TraceLocation& caller)
     {
         start(interval, 0, caller);
     }
+    void startOneShotExact(double next, const TraceLocation& caller)
+    {
+        startExact(next, 0, caller);
+    }
 
     void stop();
     bool isActive() const;
     const TraceLocation& location() const { return m_location; }
 
     double nextFireInterval() const;
     double nextUnalignedFireInterval() const;
     double repeatInterval() const { return m_repeatInterval; }
 
     void augmentRepeatInterval(double delta) {
@@ skipping 119 matching lines @@
     TimerFiredClass* m_object;
     TimerFiredFunction m_function;
 
     double m_delay;
     bool m_shouldRestartWhenTimerFires;
 };
 
 }
 
 #endif