Changing setTimeout to not clamp delays to 1ms minimum, since a 1ms clamp is not in the spec.

Source/core/frame/DOMTimer.cpp

 /*
  * Copyright (C) 2008 Apple 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 81 matching lines @@
 DOMTimer::DOMTimer(ExecutionContext* context, PassOwnPtr<ScheduledAction> action, int interval, bool singleShot, int timeoutID)
     : SuspendableTimer(context)
     , m_timeoutID(timeoutID)
     , m_nestingLevel(timerNestingLevel + 1)
     , m_action(action)
 {
     ASSERT(timeoutID > 0);
     if (shouldForwardUserGesture(interval, m_nestingLevel))
         m_userGestureToken = UserGestureIndicator::currentToken();
 
-    double intervalMilliseconds = std::max(oneMillisecond, interval * oneMillisecond);
+    double intervalMilliseconds = std::max(0.0, interval * oneMillisecond);
     if (intervalMilliseconds < minimumInterval && m_nestingLevel >= maxTimerNestingLevel)
         intervalMilliseconds = minimumInterval;
     if (singleShot)
         startOneShot(intervalMilliseconds, FROM_HERE);
     else
         startRepeating(intervalMilliseconds, FROM_HERE);
 }
 
 DOMTimer::~DOMTimer()
 {
@@ skipping 94 matching lines @@
         if (fireTime - alignedTimeRoundedDown < minimumInterval)
             return alignedTimeRoundedDown;
 
         return alignedTimeRoundedUp;
     }
 
     return fireTime;
 }
 
 } // namespace blink