Merge CSSSVGDocumentValue with CSSURIValue

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 1194 matching lines @@
             'css/CSSPropertyEquality.cpp',
             'css/CSSPropertyEquality.h',
             'css/CSSPropertySourceData.cpp',
             'css/CSSQuadValue.cpp',
             'css/CSSQuadValue.h',
             'css/CSSReflectValue.cpp',
             'css/CSSRule.cpp',
             'css/CSSRule.h',
             'css/CSSRuleList.cpp',
             'css/CSSRuleList.h',
-            'css/CSSSVGDocumentValue.cpp',
-            'css/CSSSVGDocumentValue.h',
             'css/CSSSegmentedFontFace.cpp',
             'css/CSSSegmentedFontFace.h',
             'css/CSSSelector.cpp',
             'css/CSSSelectorList.cpp',
             'css/CSSSelectorList.h',
             'css/CSSShadowValue.cpp',
             'css/CSSShadowValue.h',
             'css/CSSStringValue.cpp',
             'css/CSSStringValue.h',
             'css/CSSStyleDeclaration.cpp',
@@ skipping 2996 matching lines @@
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'timing/PerformanceBaseTest.cpp',
             'timing/PerformanceObserverTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'workers/WorkerThreadTestHelper.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }