Merge 120828 - [Chromium] IndexedDB: Don't close database if pending connections are in flight

Source/WebCore/Modules/indexeddb/IDBDatabaseBackendImpl.h

Index: Source/WebCore/Modules/indexeddb/IDBDatabaseBackendImpl.h
===================================================================
--- Source/WebCore/Modules/indexeddb/IDBDatabaseBackendImpl.h	(revision 120957)
+++ Source/WebCore/Modules/indexeddb/IDBDatabaseBackendImpl.h	(working copy)
@@ -78,6 +78,7 @@
 
     bool openInternal();
     void loadObjectStores();
+    int32_t connectionCount();
     void processPendingCalls();
 
     static void createObjectStoreInternal(ScriptExecutionContext*, PassRefPtr<IDBDatabaseBackendImpl>, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBTransactionBackendInterface>);
@@ -116,6 +117,10 @@
     class PendingDeleteCall;
     Deque<RefPtr<PendingDeleteCall> > m_pendingDeleteCalls;
 
+    // FIXME: Eliminate the limbo state between openConnection() and registerFrontendCallbacks()
+    // that this counter tracks.
+    int32_t m_pendingConnectionCount;
+
     typedef ListHashSet<RefPtr<IDBDatabaseCallbacks> > DatabaseCallbacksSet;
     DatabaseCallbacksSet m_databaseCallbacksSet;
 };