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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "config.h"
      6 #include "core/testing/NullExecutionContext.h"
      7 
      8 #include "core/dom/ExecutionContextTask.h"
      9 #include "core/events/Event.h"
     10 #include "core/frame/DOMTimer.h"
     11 
     12 namespace blink {
     13 
     14 namespace {
     15 
     16 class NullEventQueue FINAL : public EventQueue {
     17 public:
     18     NullEventQueue() { }
     19     virtual ~NullEventQueue() { }
     20     virtual bool enqueueEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE { return true; }
     21     virtual bool cancelEvent(Event*) OVERRIDE { return true; }
     22     virtual void close() OVERRIDE { }
     23 };
     24 
     25 } // namespace
     26 
     27 NullExecutionContext::NullExecutionContext()
     28     : m_tasksNeedSuspension(false)
     29     , m_queue(adoptPtrWillBeNoop(new NullEventQueue()))
     30 {
     31 }
     32 
     33 void NullExecutionContext::postTask(PassOwnPtr<ExecutionContextTask>)
     34 {
     35 }
     36 
     37 double NullExecutionContext::timerAlignmentInterval() const
     38 {
     39     return DOMTimer::visiblePageAlignmentInterval();
     40 }
     41 
     42 } // namespace blink
     43