Remove LinkPreconnect runtime flag (status=stable)

third_party/WebKit/Source/core/html/LinkRelAttribute.cpp

 /*
  * Copyright (C) 2011 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 56 matching lines @@
         } else if (equalIgnoringCase(linkType, "icon")) {
             // This also allows "shortcut icon" since we just ignore the non-standard "shortcut" token.
             // FIXME: This doesn't really follow the spec that requires "shortcut icon" to be the
             // entire string http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon
             m_iconType = Favicon;
         } else if (equalIgnoringCase(linkType, "prefetch")) {
             m_isLinkPrefetch = true;
         } else if (equalIgnoringCase(linkType, "dns-prefetch")) {
             m_isDNSPrefetch = true;
         } else if (equalIgnoringCase(linkType, "preconnect")) {
-            if (RuntimeEnabledFeatures::linkPreconnectEnabled())
-                m_isPreconnect = true;
+            m_isPreconnect = true;
         } else if (equalIgnoringCase(linkType, "preload")) {
             if (RuntimeEnabledFeatures::linkPreloadEnabled())
                 m_isLinkPreload = true;
         } else if (equalIgnoringCase(linkType, "prerender")) {
             m_isLinkPrerender = true;
         } else if (equalIgnoringCase(linkType, "next")) {
             m_isLinkNext = true;
         } else if (equalIgnoringCase(linkType, "apple-touch-icon")) {
             m_iconType = TouchIcon;
         } else if (equalIgnoringCase(linkType, "apple-touch-icon-precomposed")) {
             m_iconType = TouchPrecomposedIcon;
         } else if (equalIgnoringCase(linkType, "manifest")) {
             m_isManifest = true;
         } else if (equalIgnoringCase(linkType, "serviceworker")) {
             m_isServiceWorker = true;
         }
         // Adding or removing a value here requires you to update RelList::supportedTokens()
     }
 }
 
 } // namespace blink