Convert WebSecurityOrigin -> GURL without re-parsing the url

content/renderer/dom_storage/webstoragenamespace_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_WEBSTORAGENAMESPACE_IMPL_H_
 #define CONTENT_RENDERER_DOM_STORAGE_WEBSTORAGENAMESPACE_IMPL_H_
 
 #include <stdint.h>
 
 #include "third_party/WebKit/public/platform/WebStorageNamespace.h"
 
 namespace content {
 
 class WebStorageNamespaceImpl : public blink::WebStorageNamespace {
  public:
   // The default constructor creates a local storage namespace, the second
   // constructor should be used for session storage namepaces.
   WebStorageNamespaceImpl();
   explicit WebStorageNamespaceImpl(int64_t namespace_id);
   ~WebStorageNamespaceImpl() override;
 
   // See WebStorageNamespace.h for documentation on these functions.
   blink::WebStorageArea* createStorageArea(
-      const blink::WebString& origin) override;
+      const blink::WebSecurityOrigin& origin) override;
   virtual blink::WebStorageNamespace* copy();
   bool isSameNamespace(const WebStorageNamespace&) const override;
 
  private:
   int64_t namespace_id_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DOM_STORAGE_WEBSTORAGENAMESPACE_IMPL_H_