Deactivate IDBTransactions created within Microtasks

Source/bindings/core/v8/V8PerIsolateData.cpp

 /*
  * Copyright (C) 2009 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 44 matching lines @@
     switch (feature) {
     case v8::Isolate::kUseAsm:
         UseCounter::count(currentExecutionContext(isolate), UseCounter::UseAsm);
         break;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 V8PerIsolateData::V8PerIsolateData()
-    : m_isolateHolder(adoptPtr(new gin::IsolateHolder()))
+    : m_destructionPending(false)
+    , m_isolateHolder(adoptPtr(new gin::IsolateHolder()))
     , m_stringCache(adoptPtr(new StringCache(isolate())))
     , m_hiddenValue(adoptPtr(new V8HiddenValue()))
     , m_constructorMode(ConstructorMode::CreateNewObject)
     , m_recursionLevel(0)
     , m_isHandlingRecursionLevelError(false)
 #if ENABLE(ASSERT)
     , m_internalScriptRecursionLevel(0)
 #endif
     , m_gcEventData(adoptPtr(new GCEventData()))
     , m_performingMicrotaskCheckpoint(false)
@@ skipping 39 matching lines @@
 {
     if (m_liveRoot.isEmpty())
         m_liveRoot.set(isolate(), v8::Null(isolate()));
     return m_liveRoot.getUnsafe();
 }
 
 void V8PerIsolateData::willBeDestroyed(v8::Isolate* isolate)
 {
     V8PerIsolateData* data = from(isolate);
 
+    ASSERT(!data->m_destructionPending);
+    data->m_destructionPending = true;
+
     // Clear any data that may have handles into the heap,
     // prior to calling ThreadState::detach().
     data->m_idbPendingTransactionMonitor.clear();
 }
 
 void V8PerIsolateData::destroy(v8::Isolate* isolate)
 {
 #if ENABLE(ASSERT)
     if (blink::Platform::current()->currentThread())
         isolate->RemoveCallCompletedCallback(&assertV8RecursionScope);
@@ skipping 106 matching lines @@
 }
 
 IDBPendingTransactionMonitor* V8PerIsolateData::ensureIDBPendingTransactionMonitor()
 {
     if (!m_idbPendingTransactionMonitor)
         m_idbPendingTransactionMonitor = adoptPtr(new IDBPendingTransactionMonitor());
     return m_idbPendingTransactionMonitor.get();
 }
 
 } // namespace blink