Bug fix - rem & ch in MQs/sizes treated as unknown units

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 49 matching lines @@
         {"speech and (min-device-width: 800px)", 0, true},
         {"example", 0, true},
         {"screen and (max-weight: 3kg) and (color), (monochrome)", "not all, (monochrome)", true},
         {"(min-width: -100px)", "not all", true},
         {"(example, all,), speech", "not all, speech", true},
         {"&test, screen", "not all, screen", true},
         {"print and (min-width: 25cm)", 0, true},
         {"screen and (min-width: 400px) and (max-width: 700px)", "screen and (max-width: 700px) and (min-width: 400px)", true},
         {"screen and (device-width: 800px)", 0, true},
         {"screen and (device-height: 60em)", 0, true},
+        {"screen and (device-height: 60rem)", 0, true},
+        {"screen and (device-height: 60ch)", 0, true},
         {"screen and (device-aspect-ratio: 16/9)", 0, true},
         {"(device-aspect-ratio: 16.0/9.0)", "not all", true},
         {"(device-aspect-ratio: 16/ 9)", "(device-aspect-ratio: 16/9)", true},
         {"(device-aspect-ratio: 16/\r9)", "(device-aspect-ratio: 16/9)", true},
         {"all and (color)", "(color)", true},
         {"all and (min-color: 1)", "(min-color: 1)", true},
         {"all and (min-color: 1.0)", "not all", true},
         {"all and (min-color: 2)", "(min-color: 2)", true},
         {"all and (color-index)", "(color-index)", true},
         {"all and (min-color-index: 1)", "(min-color-index: 1)", true},
@@ skipping 82 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