Make static KURLs thread safe

third_party/WebKit/Source/core/dom/DOMURL.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2012 Motorola Mobility Inc.
  *
  * 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.
@@ skipping 30 matching lines @@
 class URLRegistrable;
 class URLSearchParams;
 
 class DOMURL final : public GarbageCollectedFinalized<DOMURL>,
                      public ScriptWrappable,
                      public DOMURLUtils {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static DOMURL* create(const String& url, ExceptionState& exceptionState) {
-    return new DOMURL(url, blankURL(), exceptionState);
+    return new DOMURL(url, KURL(ParsedURLString, kAboutBlankUrl),

[esprehn, 2017/02/15 02:05:17]

it seems pretty bad to parse about:blank inside every single URL object
construction.

[Charlie Harrison, 2017/02/15 02:44:03]

OK, I will think of a redesign.

+                      exceptionState);
   }
 
   static DOMURL* create(const String& url,
                         const String& base,
                         ExceptionState& exceptionState) {
     return new DOMURL(url, KURL(KURL(), base), exceptionState);
   }
   ~DOMURL();
 
   CORE_EXPORT static String createPublicURL(ExecutionContext*,
@@ skipping 21 matching lines @@
   void updateSearchParams(const String&);
 
   KURL m_url;
   String m_input;
   WeakMember<URLSearchParams> m_searchParams;
 };
 
 }  // namespace blink
 
 #endif  // DOMURL_h