Add an identity component for unique/opaque url::Origins.

third_party/WebKit/Source/platform/weborigin/SecurityOrigin.h

 /*
  * Copyright (C) 2007, 2008 Apple 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
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef SecurityOrigin_h
 #define SecurityOrigin_h
 
+#include <memory>
 #include "base/gtest_prod_util.h"
+#include "base/unguessable_token.h"
 #include "platform/PlatformExport.h"
 #include "platform/weborigin/Suborigin.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/ThreadSafeRefCounted.h"
 #include "wtf/text/WTFString.h"
-#include <memory>
 
 namespace blink {
 
 class KURL;
 class URLSecurityOriginMap;
 
 class PLATFORM_EXPORT SecurityOrigin : public RefCounted<SecurityOrigin> {
   WTF_MAKE_NONCOPYABLE(SecurityOrigin);
 
  public:
@@ skipping 245 matching lines @@
   static bool deserializeSuboriginAndProtocolAndHost(const String&,
                                                      const String&,
                                                      String&,
                                                      String&,
                                                      String&);
 
   String m_protocol;
   String m_host;
   String m_domain;
   Suborigin m_suborigin;
+  base::UnguessableToken m_uniqueID;
   unsigned short m_port;
   unsigned short m_effectivePort;
   bool m_isUnique;
   bool m_universalAccess;
   bool m_domainWasSetInDOM;
   bool m_canLoadLocalResources;
   bool m_blockLocalAccessFromLocalOrigin;
   bool m_isUniqueOriginPotentiallyTrustworthy;
 };
 
 }  // namespace blink
 
 #endif  // SecurityOrigin_h