Chrome::client() should return a ChromeClient reference.

Source/web/StorageNamespaceProxy.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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 35 matching lines @@
 {
     ASSERT(isMainThread());
     static WebKit::WebStorageNamespace* localStorageNamespace = 0;
     if (!localStorageNamespace)
         localStorageNamespace = WebKit::Platform::current()->createLocalStorageNamespace();
     return adoptPtr(new StorageAreaProxy(adoptPtr(localStorageNamespace->createStorageArea(origin->toString())), LocalStorage));
 }
 
 PassOwnPtr<StorageNamespace> StorageNamespace::sessionStorageNamespace(Page* page)
 {
-    WebKit::WebViewClient* webViewClient = static_cast<WebKit::WebViewImpl*>(page->chrome().client()->webView())->client();
+    WebKit::WebViewClient* webViewClient = WebKit::WebViewImpl::fromPage(page)->client();
     return adoptPtr(new StorageNamespaceProxy(adoptPtr(webViewClient->createSessionStorageNamespace())));
 }
 
 StorageNamespaceProxy::StorageNamespaceProxy(PassOwnPtr<WebKit::WebStorageNamespace> storageNamespace)
     : m_storageNamespace(storageNamespace)
 {
 }
 
 StorageNamespaceProxy::~StorageNamespaceProxy()
 {
 }
 
 PassOwnPtr<StorageArea> StorageNamespaceProxy::storageArea(SecurityOrigin* origin)
 {
     return adoptPtr(new StorageAreaProxy(adoptPtr(m_storageNamespace->createStorageArea(origin->toString())), SessionStorage));
 }
 
 bool StorageNamespaceProxy::isSameNamespace(const WebKit::WebStorageNamespace& sessionNamespace)
 {
     return m_storageNamespace && m_storageNamespace->isSameNamespace(sessionNamespace);
 }
 
 } // namespace WebCore