Experiment with hiding <script>'s 'nonce' content attribute.

third_party/WebKit/Source/core/html/HTMLScriptElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 34 matching lines @@
   String text() { return textFromChildren(); }
   void setText(const String&);
 
   KURL src() const;
 
   void setAsync(bool);
   bool async() const;
 
   ScriptLoader* loader() const { return m_loader.get(); }
 
+  // ScriptLoaderClient
+  AtomicString nonce() const override { return m_nonce; }
+  void setNonce(const String& nonce) override { m_nonce = AtomicString(nonce); }
+  void clearNonce() override { m_nonce = emptyAtom; }
+
   DECLARE_VIRTUAL_TRACE();
 
  private:
   HTMLScriptElement(Document&,
                     bool wasInsertedByParser,
                     bool alreadyStarted,
                     bool createdDuringDocumentWrite);
 
   void parseAttribute(const AttributeModificationParams&) override;
   InsertionNotificationRequest insertedInto(ContainerNode*) override;
@@ skipping 13 matching lines @@
   String eventAttributeValue() const override;
   bool asyncAttributeValue() const override;
   bool deferAttributeValue() const override;
   bool hasSourceAttribute() const override;
 
   void dispatchLoadEvent() override;
 
   Element* cloneElementWithoutAttributesAndChildren() override;
 
   Member<ScriptLoader> m_loader;
+  AtomicString m_nonce;
 };
 
 }  // namespace blink
 
 #endif  // HTMLScriptElement_h