A sizes attribute parser

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 27 matching lines @@
             ASSERT_STREQ(test.input, output.toString().ascii().data());
     }
 }
 
 TEST(MediaQueryParserTest, Basic)
 {
     // The first string represents the input string.
     // The second string represents the output string, if present.
     // Otherwise, the output string is identical to the first string.
     TestCase testCases[] = {
+        {"", 0, true},
+        {" ", "", true},
         {"screen", 0, true},
         {"screen and (color)", 0, true},
         {"all and (min-width:500px)", "(min-width: 500px)", true},
         {"all and (min-width:/*bla*/500px)", "(min-width: 500px)", true},
         {"(min-width:500px)", "(min-width: 500px)", true},
         {"screen and (color), projection and (color)", 0, true},
         {"not screen and (color)", 0, true},
         {"only screen and (color)", 0, true},
         {"screen and (color), projection and (color)", 0, true},
         {"aural and (device-aspect-ratio: 16/9)", 0, true},
@@ skipping 102 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