Implement the 'noopener' link relation.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 18 matching lines @@
 #include "core/dom/DOMURLUtils.h"
 #include "core/dom/Document.h"
 #include "core/html/HTMLElement.h"
 #include "platform/LinkHash.h"
 
 namespace blink {
 
 // Link relation bitmask values.
 // FIXME: Uncomment as the various link relations are implemented.
 enum {
-//     RelationAlternate   = 0x00000001,
-//     RelationArchives    = 0x00000002,
-//     RelationAuthor      = 0x00000004,
-//     RelationBoomark     = 0x00000008,
-//     RelationExternal    = 0x00000010,
-//     RelationFirst       = 0x00000020,
-//     RelationHelp        = 0x00000040,
-//     RelationIndex       = 0x00000080,
-//     RelationLast        = 0x00000100,
-//     RelationLicense     = 0x00000200,
-//     RelationNext        = 0x00000400,
-//     RelationNoFolow    = 0x00000800,
-    RelationNoReferrer     = 0x00001000,
-//     RelationPrev        = 0x00002000,
-//     RelationSearch      = 0x00004000,
-//     RelationSidebar     = 0x00008000,
-//     RelationTag         = 0x00010000,
-//     RelationUp          = 0x00020000,
+    //     RelationAlternate   = 0x00000001,
+    //     RelationArchives    = 0x00000002,
+    //     RelationAuthor      = 0x00000004,
+    //     RelationBoomark     = 0x00000008,
+    //     RelationExternal    = 0x00000010,
+    //     RelationFirst       = 0x00000020,
+    //     RelationHelp        = 0x00000040,
+    //     RelationIndex       = 0x00000080,
+    //     RelationLast        = 0x00000100,
+    //     RelationLicense     = 0x00000200,
+    //     RelationNext        = 0x00000400,
+    //     RelationNoFolow    = 0x00000800,
+    RelationNoReferrer = 0x00001000,
+    //     RelationPrev        = 0x00002000,
+    //     RelationSearch      = 0x00004000,
+    //     RelationSidebar     = 0x00008000,
+    //     RelationTag         = 0x00010000,
+    //     RelationUp          = 0x00020000,
+    RelationNoOpener = 0x00040000,

[Mike West, 2015/11/15 08:17:39]

`git cl format`.

 };
 
 class CORE_EXPORT HTMLAnchorElement : public HTMLElement, public DOMURLUtils {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<HTMLAnchorElement> create(Document&);
 
     ~HTMLAnchorElement() override;
 
     KURL href() const;
@@ skipping 57 matching lines @@
 }
 
 // Functions shared with the other anchor elements (i.e., SVG).
 
 bool isEnterKeyKeydownEvent(Event*);
 bool isLinkClick(Event*);
 
 } // namespace blink
 
 #endif // HTMLAnchorElement_h