Drop V8RecursionScope dependency on ExecutionContext

Source/modules/indexeddb/IDBTransaction.cpp

 /*
  * Copyright (C) 2010 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 59 matching lines @@
     , m_hasPendingActivity(true)
     , m_contextStopped(false)
     , m_previousMetadata(previousMetadata)
 {
     if (mode == WebIDBTransactionModeVersionChange) {
         // Not active until the callback.
         m_state = Inactive;
     }
 
     if (m_state == Active)
-        IDBPendingTransactionMonitor::from(*scriptState->executionContext()).addNewTransaction(*this);
+        IDBPendingTransactionMonitor::addNewTransaction(scriptState->isolate(), *this);
     m_database->transactionCreated(this);
 }
 
 IDBTransaction::~IDBTransaction()
 {
     ASSERT(m_state == Finished || m_contextStopped);
     ASSERT(m_requestList.isEmpty() || m_contextStopped);
 }
 
 void IDBTransaction::trace(Visitor* visitor)
@@ skipping 281 matching lines @@
     event->setTarget(this);
     eventQueue->enqueueEvent(event);
 }
 
 WebIDBDatabase* IDBTransaction::backendDB() const
 {
     return m_database->backend();
 }
 
 } // namespace blink