Refactor TimeBase to post tasks. Workers to use real Idle tasks.

Source/core/frame/DOMTimerCoordinator.cpp

 // Copyright 2015 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 "config.h"
 #include "core/frame/DOMTimerCoordinator.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/DOMTimer.h"
 
@@ skipping 25 matching lines @@
         return;
 
     if (DOMTimer* removedTimer = m_timers.get(timeoutID))
         removedTimer->dispose();
 
     m_timers.remove(timeoutID);
 }
 
 void DOMTimerCoordinator::didChangeTimerAlignmentInterval()
 {
+    double now = monotonicallyIncreasingTime();
     for (TimeoutMap::iterator iter = m_timers.begin(); iter != m_timers.end(); ++iter)
-        iter->value->didChangeAlignmentInterval();
+        iter->value->didChangeAlignmentInterval(now);
 }
 
 DEFINE_TRACE(DOMTimerCoordinator)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_timers);
 #endif
 }
 
 int DOMTimerCoordinator::nextID()
 {
     while (true) {
         ++m_circularSequentialID;
 
         if (m_circularSequentialID <= 0)
             m_circularSequentialID = 1;
 
         if (!m_timers.contains(m_circularSequentialID))
             return m_circularSequentialID;
     }
 }
 
 } // namespace blink