Merge 97546 - [Chromium] Some WebSQLDatabase in worker bug fixes.

Source/WebKit/chromium/src/WebWorkerClientImpl.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:
  *
  *     * 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 170 matching lines @@
 }
 
 void WebWorkerClientImpl::workerContextDestroyed()
 {
     m_proxy->workerContextDestroyed();
 }
 
 bool WebWorkerClientImpl::allowFileSystem() 
 {
     WebKit::WebViewImpl* webView = m_webFrame->viewImpl();
+    if (!webView)
+        return false;
     return !webView->permissionClient() || webView->permissionClient()->allowFileSystem(m_webFrame);
 }
 
 void WebWorkerClientImpl::openFileSystem(WebFileSystem::Type type, long long size, bool create, 
                                          WebFileSystemCallbacks* callbacks)
 {
      m_webFrame->client()->openFileSystem(m_webFrame, type, size, create, callbacks);
 }
 
 bool WebWorkerClientImpl::allowDatabase(WebFrame*, const WebString& name, const WebString& displayName, unsigned long estimatedSize) 
 {
-     WebKit::WebViewImpl* webView = m_webFrame->viewImpl();
-     return !webView->permissionClient() || webView->permissionClient()->allowDatabase(m_webFrame, name, displayName, estimatedSize);
+    WebKit::WebViewImpl* webView = m_webFrame->viewImpl();
+    if (!webView)
+        return false;
+    return !webView->permissionClient() || webView->permissionClient()->allowDatabase(m_webFrame, name, displayName, estimatedSize);
 }
  
 void WebWorkerClientImpl::dispatchDevToolsMessage(const WebString& message)
 {
     if (m_pageInspector)
         m_pageInspector->dispatchMessageFromWorker(message);
 }
 
 WebView* WebWorkerClientImpl::view() const 
 {   
     return m_webFrame->view(); 
 }
 
 WebWorkerClientImpl::WebWorkerClientImpl(Worker* worker, WebFrameImpl* webFrame)
     : m_proxy(new WorkerMessagingProxy(worker))
     , m_scriptExecutionContext(worker->scriptExecutionContext())
     , m_webFrame(webFrame)    
     , m_pageInspector(0)
 
 {
 }
 
 WebWorkerClientImpl::~WebWorkerClientImpl()
 {
 }
 
 } // namespace WebKit
 
 #endif