[WIP] Migrate hasPendingActivity from ActiveDOMObject to ScriptWrappable.

third_party/WebKit/Source/core/dom/ActiveDOMObject.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 51 matching lines @@
 void ActiveDOMObject::suspendIfNeeded()
 {
 #if ENABLE(ASSERT)
     ASSERT(!m_suspendIfNeededCalled);
     m_suspendIfNeededCalled = true;
 #endif
     if (ExecutionContext* context = executionContext())
         context->suspendActiveDOMObjectIfNeeded(this);
 }
 
-bool ActiveDOMObject::hasPendingActivity() const
-{
-    return false;
-}
-
 void ActiveDOMObject::suspend()
 {
 }
 
 void ActiveDOMObject::resume()
 {
 }
 
 void ActiveDOMObject::stop()
 {
@@ skipping 10 matching lines @@
 
     if (context->activeDOMObjectsAreSuspended()) {
         suspend();
         return;
     }
 
     resume();
 }
 
 } // namespace blink