Fixed MediaQueryTokenizer escape support

Source/core/css/MediaQuerySetTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/css/MediaQuery.h"
 
 #include "core/css/MediaList.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/StringBuilder.h"
@@ skipping 100 matching lines @@
         {"(color", "(color)", true},
         {"(min-color: 2", "(min-color: 2)", true},
         {"(orientation: portrait)", 0, true},
         {"tv and (scan: progressive)", 0, true},
         {"(pointer: coarse)", 0, true},
         {"(min-orientation:portrait)", "not all", true},
         {"all and (orientation:portrait)", "(orientation: portrait)", true},
         {"all and (orientation:landscape)", "(orientation: landscape)", true},
         {"NOT braille, tv AND (max-width: 200px) and (min-WIDTH: 100px) and (orientation: landscape), (color)",
             "not braille, tv and (max-width: 200px) and (min-width: 100px) and (orientation: landscape), (color)", true},
+        {"(m\\61x-width: 300px)", "(max-width: 300px)", true},
+        {"(max-width: 400\\70\\78)", "(max-width: 400px)", false},
+        {"(max-width: 500\\0070\\0078)", "(max-width: 500px)", false},
+        {"(max-width: 600\\000070\\000078)", "(max-width: 600px)", false},
         {"(max-width: 700px), (max-width: 700px)", "(max-width: 700px), (max-width: 700px)", true},
         {"(max-width: 800px()), (max-width: 800px)", "not all, (max-width: 800px)", true},
         {"(max-width: 900px(()), (max-width: 900px)", "not all", true},
         {"(max-width: 600px(())))), (max-width: 600px)", "not all, (max-width: 600px)", true},
         {"(max-width: 500px(((((((((())))), (max-width: 500px)", "not all", true},
         {"(max-width: 800px[]), (max-width: 800px)", "not all, (max-width: 800px)", true},
         {"(max-width: 900px[[]), (max-width: 900px)", "not all", true},
         {"(max-width: 600px[[]]]]), (max-width: 600px)", "not all, (max-width: 600px)", true},
         {"(max-width: 500px[[[[[[[[[[]]]]), (max-width: 500px)", "not all", true},
         {"(max-width: 800px{}), (max-width: 800px)", "not all, (max-width: 800px)", true},
@@ skipping 19 matching lines @@
 
     for (unsigned i = 0; testCases[i].input; ++i) {
         RefPtrWillBeRawPtr<MediaQuerySet> oldParserQuerySet = MediaQuerySet::create(testCases[i].input);
         RefPtrWillBeRawPtr<MediaQuerySet> threadSafeQuerySet = MediaQuerySet::createOffMainThread(testCases[i].input);
         testMediaQuery(testCases[i], *oldParserQuerySet, true);
         testMediaQuery(testCases[i], *threadSafeQuerySet, false);
     }
 }
 
 } // namespace