Merge 107174

Source/WebKit/chromium/src/DatabaseObserver.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 147 matching lines @@
         WebViewImpl* webView = webFrame->viewImpl();
         if (!webView)
             return false;
         if (webView->permissionClient())
             return webView->permissionClient()->allowDatabase(webFrame, name, displayName, estimatedSize);
     } else {
 #if ENABLE(WORKERS)
         WorkerContext* workerContext = static_cast<WorkerContext*>(scriptExecutionContext);
         WorkerLoaderProxy* workerLoaderProxy = &workerContext->thread()->workerLoaderProxy();
         WebWorkerBase* webWorker = static_cast<WebWorkerBase*>(workerLoaderProxy);
-        return allowDatabaseForWorker(webWorker->commonClient(), webWorker->view()->mainFrame(), name, displayName, estimatedSize);
+        WebView* view = webWorker->view();
+        if (!view)
+            return false;
+        return allowDatabaseForWorker(webWorker->commonClient(), view->mainFrame(), name, displayName, estimatedSize);
 #else
         ASSERT_NOT_REACHED();
 #endif
     }
 
     return true;
 }
 
 void DatabaseObserver::databaseOpened(AbstractDatabase* database)
 {
@@ skipping 39 matching lines @@
 }
 
 void DatabaseObserver::reportVacuumDatabaseResult(AbstractDatabase* database, int sqliteErrorCode)
 {
     WebDatabase::observer()->reportVacuumDatabaseResult(WebDatabase(database), sqliteErrorCode);
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(SQL_DATABASE)