Move a bunch of code in content\renderer to the content namespace.

content/renderer/dom_storage/webstoragearea_impl.h

 // Copyright (c) 2012 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_DOM_STORAGE_WEBSTORAGEAREA_IMPL_H_
 #define CONTENT_RENDERER_DOM_STORAGE_WEBSTORAGEAREA_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageArea.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 
 class GURL;
 
 namespace dom_storage {
 class DomStorageCachedArea;
 }
 
+namespace content {
+
 class WebStorageAreaImpl : public WebKit::WebStorageArea {
  public:
   static WebStorageAreaImpl* FromConnectionId(int id);
 
   WebStorageAreaImpl(int64 namespace_id, const GURL& origin);
   virtual ~WebStorageAreaImpl();
 
   // See WebStorageArea.h for documentation on these functions.
   virtual unsigned length();
   virtual WebKit::WebString key(unsigned index);
   virtual WebKit::WebString getItem(const WebKit::WebString& key);
   virtual void setItem(
       const WebKit::WebString& key, const WebKit::WebString& value,
       const WebKit::WebURL& page_url, WebStorageArea::Result& result);
   virtual void removeItem(
       const WebKit::WebString& key, const WebKit::WebURL& page_url);
   virtual void clear(const WebKit::WebURL& url);
   virtual size_t memoryBytesUsedByCache() const;
 
  private:
   int connection_id_;
   scoped_refptr<dom_storage::DomStorageCachedArea> cached_area_;
 };
 
+}  // namespace content
+
 #endif  // CONTENT_RENDERER_DOM_STORAGE_WEBSTORAGEAREA_IMPL_H_