Convert WebSecurityOrigin -> GURL without re-parsing the url

content/renderer/dom_storage/local_storage_namespace.h

 // Copyright 2016 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_LOCAL_STORAGE_NAMESPACE_H_
 #define CONTENT_RENDERER_DOM_STORAGE_LOCAL_STORAGE_NAMESPACE_H_
 
 #include "base/macros.h"
+#include "third_party/WebKit/public/platform/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/platform/WebStorageNamespace.h"
 
 namespace content {
 class LocalStorageCachedAreas;
 
 class LocalStorageNamespace : public blink::WebStorageNamespace {
  public:
   // |local_storage_cached_areas| is guaranteed to outlive this object.
   explicit LocalStorageNamespace(
       LocalStorageCachedAreas* local_storage_cached_areas);
   ~LocalStorageNamespace() override;
 
   // blink::WebStorageNamespace:
   blink::WebStorageArea* createStorageArea(
-      const blink::WebString& origin) override;
+      const blink::WebSecurityOrigin& origin) override;
   bool isSameNamespace(const WebStorageNamespace&) const override;
 
  private:
   LocalStorageCachedAreas* const local_storage_cached_areas_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalStorageNamespace);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DOM_STORAGE_LOCAL_STORAGE_NAMESPACE_H_