Simpler return value of HashTable::add/HashMap:add and others

Source/core/dom/ExecutionContext.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 Google 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
@@ skipping 181 matching lines @@
 int ExecutionContext::installNewTimeout(PassOwnPtr<ScheduledAction> action, int timeout, bool singleShot)
 {
     int timeoutID;
     while (true) {
         timeoutID = circularSequentialID();
         if (!m_timeouts.contains(timeoutID))
             break;
     }
     TimeoutMap::AddResult result = m_timeouts.add(timeoutID, DOMTimer::create(this, action, timeout, singleShot, timeoutID));
     ASSERT(result.isNewEntry);
-    DOMTimer* timer = result.iterator->value.get();
+    DOMTimer* timer = result.storedValue->value.get();
 
     timer->suspendIfNeeded();
 
     return timer->timeoutID();
 }
 
 void ExecutionContext::removeTimeoutByID(int timeoutID)
 {
     if (timeoutID <= 0)
         return;
@@ skipping 115 matching lines @@
 
     RELEASE_ASSERT(m_client);
     // The SandboxOrigin is stored redundantly in the security origin.
     if (isSandboxed(SandboxOrigin) && m_client->securityContext().securityOrigin() && !m_client->securityContext().securityOrigin()->isUnique()) {
         m_client->securityContext().setSecurityOrigin(SecurityOrigin::createUnique());
         m_client->didUpdateSecurityOrigin();
     }
 }
 
 } // namespace WebCore