Deprecate resource requests whose URLs contain raw newlines.

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 5029 matching lines @@
 
   if (completed.whitespaceRemoved()) {
     if (completed.protocolIsInHTTPFamily()) {
       UseCounter::count(*this,
                         UseCounter::DocumentCompleteURLHTTPContainingNewline);
       bool lessThan = url.contains('<');
       if (lessThan) {
         UseCounter::count(
             *this,
             UseCounter::DocumentCompleteURLHTTPContainingNewlineAndLessThan);
-
-        if (RuntimeEnabledFeatures::restrictCompleteURLCharacterSetEnabled())
-          return KURL();
       }
     } else {
       UseCounter::count(
           *this, UseCounter::DocumentCompleteURLNonHTTPContainingNewline);
     }
   }
   return completed;
 }
 
 KURL Document::completeURLWithOverride(const String& url,
@@ skipping 1555 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (blink::Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif