Hook up new DomStorage backing for for single-process chromium too.

content/renderer/renderer_webstoragenamespace_impl.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDERER_WEBSTORAGENAMESPACE_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_WEBSTORAGENAMESPACE_IMPL_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "content/common/dom_storage_common.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.h"
+#include "webkit/dom_storage/dom_storage_types.h"
+// The above is to include the ENABLE_NEW_DOM_STORAGE_BACKEND flag
+// in all consumers.
 
 class RendererWebStorageNamespaceImpl : public WebKit::WebStorageNamespace {
  public:
   explicit RendererWebStorageNamespaceImpl(DOMStorageType storage_type);
   RendererWebStorageNamespaceImpl(DOMStorageType storage_type,
                                   int64 namespace_id);
 
   // See WebStorageNamespace.h for documentation on these functions.
   virtual ~RendererWebStorageNamespaceImpl();
   virtual WebKit::WebStorageArea* createStorageArea(
       const WebKit::WebString& origin);
   virtual WebKit::WebStorageNamespace* copy();
   virtual void close();
 
  private:
-  // Used during lazy initialization of namespace_id_.
-  const DOMStorageType storage_type_;
-
-  // Our namespace ID.
   int64 namespace_id_;
 };
 
 #endif  // CONTENT_RENDERER_RENDERER_WEBSTORAGENAMESPACE_IMPL_H_