Implement PotentialCustomElementName

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 2608 matching lines @@
             'dom/URLSearchParams.h',
             'dom/UserActionElementSet.cpp',
             'dom/UserActionElementSet.h',
             'dom/ViewportDescription.cpp',
             'dom/ViewportDescription.h',
             'dom/VisitedLinkState.cpp',
             'dom/VisitedLinkState.h',
             'dom/WeakIdentifierMap.h',
             'dom/XMLDocument.cpp',
             'dom/XMLDocument.h',
+            'dom/custom/CustomElement.cpp',
+            'dom/custom/CustomElement.h',
+            'dom/custom/CustomElementsRegistry.cpp',
+            'dom/custom/CustomElementsRegistry.h',
             'dom/custom/V0CustomElement.cpp',
             'dom/custom/V0CustomElement.h',
             'dom/custom/V0CustomElementAsyncImportMicrotaskQueue.cpp',
             'dom/custom/V0CustomElementAsyncImportMicrotaskQueue.h',
             'dom/custom/V0CustomElementCallbackInvocation.cpp',
             'dom/custom/V0CustomElementCallbackInvocation.h',
             'dom/custom/V0CustomElementCallbackQueue.cpp',
             'dom/custom/V0CustomElementCallbackQueue.h',
             'dom/custom/V0CustomElementDefinition.cpp',
             'dom/custom/V0CustomElementDefinition.h',
@@ skipping 21 matching lines @@
             'dom/custom/V0CustomElementRegistrationContext.cpp',
             'dom/custom/V0CustomElementRegistrationContext.h',
             'dom/custom/V0CustomElementRegistry.cpp',
             'dom/custom/V0CustomElementRegistry.h',
             'dom/custom/V0CustomElementScheduler.cpp',
             'dom/custom/V0CustomElementScheduler.h',
             'dom/custom/V0CustomElementSyncMicrotaskQueue.cpp',
             'dom/custom/V0CustomElementSyncMicrotaskQueue.h',
             'dom/custom/V0CustomElementUpgradeCandidateMap.cpp',
             'dom/custom/V0CustomElementUpgradeCandidateMap.h',
-            'dom/custom/CustomElementsRegistry.cpp',
-            'dom/custom/CustomElementsRegistry.h',
             'dom/shadow/DistributedNodes.cpp',
             'dom/shadow/DistributedNodes.h',
             'dom/shadow/ElementShadow.cpp',
             'dom/shadow/ElementShadow.h',
             'dom/shadow/FlatTreeTraversal.cpp',
             'dom/shadow/FlatTreeTraversal.h',
             'dom/shadow/InsertionPoint.cpp',
             'dom/shadow/InsertionPoint.h',
             'dom/shadow/SelectRuleFeatureSet.cpp',
             'dom/shadow/SelectRuleFeatureSet.h',
@@ skipping 1267 matching lines @@
             'dom/NthIndexCacheTest.cpp',
             'dom/RangeTest.cpp',
             'dom/ScriptRunnerTest.cpp',
             'dom/SelectorQueryTest.cpp',
             'dom/StyleElementTest.cpp',
             'dom/StyleEngineTest.cpp',
             'dom/TextTest.cpp',
             'dom/TreeScopeStyleSheetCollectionTest.cpp',
             'dom/TreeScopeTest.cpp',
             'dom/URLSearchParamsTest.cpp',
+            'dom/custom/CustomElementTest.cpp',
             'dom/shadow/FlatTreeTraversalTest.cpp',
             'editing/EditingCommandTest.cpp',
             'editing/EditingStrategyTest.cpp',
             'editing/EditingTestBase.cpp',
             'editing/EditingTestBase.h',
             'editing/EditingUtilitiesTest.cpp',
             'editing/EditorTest.cpp',
             'editing/FrameSelectionTest.cpp',
             'editing/GranularityStrategyTest.cpp',
             'editing/InputMethodControllerTest.cpp',
@@ skipping 135 matching lines @@
             'svg/SVGPathParserTest.cpp',
             'svg/UnsafeSVGAttributeSanitizationTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'workers/WorkerThreadTestHelper.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }