Merge 107174

Source/WebKit/chromium/src/IDBFactoryBackendProxy.cpp

 /*
  * Copyright (C) 2011 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 65 matching lines @@
     }
 
     m_webIDBFactory->getDatabaseNames(new WebIDBCallbacksImpl(callbacks), origin, webFrame, dataDir);
 }
 
 void IDBFactoryBackendProxy::open(const String& name, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<SecurityOrigin> prpOrigin, Frame* frame, const String& dataDir)
 {
     WebSecurityOrigin origin(prpOrigin);
     WebFrameImpl* webFrame = WebFrameImpl::fromFrame(frame);
     WebViewImpl* webView = webFrame->viewImpl();
+    if (!webView) {
+        // Frame is closed, worker is terminaring.
+        return;
+    }
     if (webView->permissionClient() && !webView->permissionClient()->allowIndexedDB(webFrame, name, origin)) {
         callbacks->onError(WebIDBDatabaseError(0, "The user denied permission to access the database."));
         return;
     }
 
     m_webIDBFactory->open(name, new WebIDBCallbacksImpl(callbacks), origin, webFrame, dataDir);
 }
 
 void IDBFactoryBackendProxy::deleteDatabase(const String& name, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<SecurityOrigin> prpOrigin, Frame* frame, const String& dataDir)
 {
     WebSecurityOrigin origin(prpOrigin);
     WebFrameImpl* webFrame = WebFrameImpl::fromFrame(frame);
     WebViewImpl* webView = webFrame->viewImpl();
     if (webView->permissionClient() && !webView->permissionClient()->allowIndexedDB(webFrame, name, origin)) {
         callbacks->onError(WebIDBDatabaseError(0, "The user denied permission to access the database."));
         return;
     }
 
     m_webIDBFactory->deleteDatabase(name, new WebIDBCallbacksImpl(callbacks), origin, webFrame, dataDir);
 }
 
 } // namespace WebKit
 
 #endif // ENABLE(INDEXED_DATABASE)