Make CSSParserToken::operator== perform a full string equality.

third_party/WebKit/Source/core/core.gypi

 {
     'includes': [
         'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/KeyframeEffect.idl',
             'animation/EffectModel.idl',
             'animation/AnimationEffectReadOnly.idl',
@@ skipping 3926 matching lines @@
             'css/DragUpdateTest.cpp',
             'css/MediaQueryEvaluatorTest.cpp',
             'css/MediaQueryListTest.cpp',
             'css/MediaQueryMatcherTest.cpp',
             'css/MediaQuerySetTest.cpp',
             'css/MediaValuesTest.cpp',
             'css/RuleFeatureSetTest.cpp',
             'css/RuleSetTest.cpp',
             'css/StyleSheetContentsTest.cpp',
             'css/invalidation/InvalidationSetTest.cpp',
+            'css/parser/CSSParserTokenTest.cpp',
             'css/parser/CSSPropertyParserTest.cpp',
             'css/parser/CSSSelectorParserTest.cpp',
             'css/parser/CSSTokenizerTest.cpp',
             'css/parser/MediaConditionTest.cpp',
             'css/parser/SizesAttributeParserTest.cpp',
             'css/parser/SizesCalcParserTest.cpp',
             'css/resolver/FontBuilderTest.cpp',
             'css/resolver/MatchResultTest.cpp',
             'dom/ActiveDOMObjectTest.cpp',
             'dom/AttrTest.cpp',
@@ skipping 166 matching lines @@
             'svg/UnsafeSVGAttributeSanitizationTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'timing/PerformanceBaseTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'workers/WorkerThreadTestHelper.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }