Add dataLoss property to IDB's upgradeneeded event

Source/modules/indexeddb/IDBOpenDBRequest.cpp

 /*
  * 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 52 matching lines @@
 
 void IDBOpenDBRequest::onBlocked(int64_t oldVersion)
 {
     IDB_TRACE("IDBOpenDBRequest::onBlocked()");
     if (!shouldEnqueueEvent())
         return;
     RefPtr<IDBAny> newVersionAny = (m_version == IDBDatabaseMetadata::DefaultIntVersion) ? IDBAny::createNull() : IDBAny::create(m_version);
     enqueueEvent(IDBVersionChangeEvent::create(IDBAny::create(oldVersion), newVersionAny.release(), eventNames().blockedEvent));
 }
 
-void IDBOpenDBRequest::onUpgradeNeeded(int64_t oldVersion, PassRefPtr<IDBDatabaseBackendInterface> prpDatabaseBackend, const IDBDatabaseMetadata& metadata)
+void IDBOpenDBRequest::onUpgradeNeeded(int64_t oldVersion, PassRefPtr<IDBDatabaseBackendInterface> prpDatabaseBackend, const IDBDatabaseMetadata& metadata, bool dataLoss)
 {
     IDB_TRACE("IDBOpenDBRequest::onUpgradeNeeded()");
     if (m_contextStopped || !scriptExecutionContext()) {
         RefPtr<IDBDatabaseBackendInterface> db = prpDatabaseBackend;
         db->abort(m_transactionId);
         db->close(m_databaseCallbacks);
         return;
     }
     if (!shouldEnqueueEvent())
         return;
@@ skipping 12 matching lines @@
         oldVersion = IDBDatabaseMetadata::DefaultIntVersion;
     }
     IDBDatabaseMetadata oldMetadata(metadata);
     oldMetadata.intVersion = oldVersion;
 
     m_transaction = IDBTransaction::create(scriptExecutionContext(), m_transactionId, idbDatabase.get(), this, oldMetadata);
     m_result = IDBAny::create(idbDatabase.release());
 
     if (m_version == IDBDatabaseMetadata::NoIntVersion)
         m_version = 1;
-    enqueueEvent(IDBVersionChangeEvent::create(IDBAny::create(oldVersion), IDBAny::create(m_version), eventNames().upgradeneededEvent));
+    enqueueEvent(IDBVersionChangeEvent::create(IDBAny::create(oldVersion), IDBAny::create(m_version), eventNames().upgradeneededEvent, dataLoss));
 }
 
 void IDBOpenDBRequest::onSuccess(PassRefPtr<IDBDatabaseBackendInterface> prpBackend, const IDBDatabaseMetadata& metadata)
 {
     IDB_TRACE("IDBOpenDBRequest::onSuccess()");
     if (m_contextStopped || !scriptExecutionContext()) {
         RefPtr<IDBDatabaseBackendInterface> db = prpBackend;
         db->close(m_databaseCallbacks);
         return;
     }
@@ skipping 34 matching lines @@
     if (event->type() == eventNames().successEvent && m_result->type() == IDBAny::IDBDatabaseType && m_result->idbDatabase()->isClosePending()) {
         m_result.clear();
         onError(IDBDatabaseError::create(IDBDatabaseException::AbortError, "The connection was closed."));
         return false;
     }
 
     return IDBRequest::dispatchEvent(event);
 }
 
 } // namespace WebCore