Page::chrome() should return a reference.

Source/WebKit/chromium/src/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 30 matching lines @@
 
 namespace WebCore {
 
 PassRefPtr<StorageNamespace> StorageNamespace::localStorageNamespace(unsigned quota)
 {
     return adoptRef(new StorageNamespaceProxy(WebKit::Platform::current()->createLocalStorageNamespace("", quota), LocalStorage));
 }
 
 PassRefPtr<StorageNamespace> StorageNamespace::sessionStorageNamespace(Page* page, unsigned quota)
 {
-    WebKit::WebViewClient* webViewClient = static_cast<WebKit::WebViewImpl*>(page->chrome()->client()->webView())->client();
+    WebKit::WebViewClient* webViewClient = static_cast<WebKit::WebViewImpl*>(page->chrome().client()->webView())->client();
     return adoptRef(new StorageNamespaceProxy(webViewClient->createSessionStorageNamespace(quota), SessionStorage));
 }
 
 // FIXME: storageNamespace argument should be a PassOwnPtr.
 StorageNamespaceProxy::StorageNamespaceProxy(WebKit::WebStorageNamespace* storageNamespace, StorageType storageType)
     : m_storageNamespace(adoptPtr(storageNamespace))
     , m_storageType(storageType)
 {
 }
 
@@ skipping 38 matching lines @@
 {
     ASSERT_NOT_REACHED();
 }
 
 bool StorageNamespaceProxy::isSameNamespace(const WebKit::WebStorageNamespace& sessionNamespace)
 {
     return m_storageNamespace && m_storageNamespace->isSameNamespace(sessionNamespace);
 }
 
 } // namespace WebCore