Make <custom-ident> not insert quotes

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 1108 matching lines @@
             'css/CSSDefaultStyleSheets.cpp',
             'css/CSSDefaultStyleSheets.h',
             'css/CSSFontFace.cpp',
             'css/CSSFontFace.h',
             'css/CSSFontFaceRule.cpp',
             'css/CSSFontFaceRule.h',
             'css/CSSFontFaceSource.cpp',
             'css/CSSFontFaceSource.h',
             'css/CSSFontFaceSrcValue.cpp',
             'css/CSSFontFaceSrcValue.h',
+            'css/CSSFontFamilyValue.cpp',
+            'css/CSSFontFamilyValue.h',
             'css/CSSFontFeatureValue.cpp',
             'css/CSSFontFeatureValue.h',
             'css/CSSFontSelector.cpp',
             'css/CSSFontSelector.h',
             'css/CSSFontSelectorClient.h',
             'css/CSSFunctionValue.cpp',
             'css/CSSFunctionValue.h',
             'css/CSSGradientValue.cpp',
             'css/CSSGradientValue.h',
             'css/CSSGridAutoRepeatValue.h',
@@ skipping 2927 matching lines @@
             'style/SVGComputedStyleTest.cpp',
             'svg/SVGPathParserTest.cpp',
             'svg/UnsafeSVGAttributeSanitizationTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }