Switch Shadow DOM V0 <content> FeatureSet tests to SimTest.

third_party/WebKit/Source/core/testing/Internals.h

Index: third_party/WebKit/Source/core/testing/Internals.h
diff --git a/third_party/WebKit/Source/core/testing/Internals.h b/third_party/WebKit/Source/core/testing/Internals.h
index d269bdede4bce37bf5c68a44f5942d03e544518b..465a74f07204b52224b2bca09c706fe733d336c6 100644
--- a/third_party/WebKit/Source/core/testing/Internals.h
+++ b/third_party/WebKit/Source/core/testing/Internals.h
@@ -137,15 +137,6 @@ class Internals final : public GarbageCollected<Internals>,
   bool isValidContentSelect(Element* insertionPoint, ExceptionState&);
   Node* treeScopeRootNode(Node*);
   Node* parentTreeScope(Node*);
-  bool hasSelectorForIdInShadow(Element* host,
-                                const AtomicString& idValue,
-                                ExceptionState&);
-  bool hasSelectorForClassInShadow(Element* host,
-                                   const AtomicString& className,
-                                   ExceptionState&);
-  bool hasSelectorForAttributeInShadow(Element* host,
-                                       const AtomicString& attributeName,
-                                       ExceptionState&);
   unsigned short compareTreeScopePosition(const Node*,
                                           const Node*,
                                           ExceptionState&) const;