Make siblingRules and uncommonAttributeRules private.

third_party/WebKit/Source/core/css/resolver/SharedStyleFinderTest.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/resolver/SharedStyleFinder.h"
 
 #include "core/css/RuleFeature.h"
 #include "core/css/RuleSet.h"
 #include "core/css/parser/CSSParser.h"
 #include "core/dom/Document.h"
@@ skipping 19 matching lines @@
 
   void addSelector(const String& selector) {
     StyleRuleBase* newRule =
         CSSParser::parseRule(CSSParserContext(HTMLStandardMode, nullptr),
                              nullptr, selector + "{color:pink}");
     m_ruleSet->addStyleRule(static_cast<StyleRule*>(newRule),
                             RuleHasNoSpecialState);
   }
 
   void finishAddingSelectors() {
-    m_siblingRuleSet = makeRuleSet(m_ruleSet->features().siblingRules);
+    m_siblingRuleSet = makeRuleSet(m_ruleSet->features().siblingRules());
     m_uncommonAttributeRuleSet =
-        makeRuleSet(m_ruleSet->features().uncommonAttributeRules);
+        makeRuleSet(m_ruleSet->features().uncommonAttributeRules());
   }
 
   bool matchesUncommonAttributeRuleSet(Element& element) {
     return matchesRuleSet(element, m_uncommonAttributeRuleSet);
   }
 
  private:
   void SetUp() override {
     m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
     m_ruleSet = RuleSet::create();
@@ skipping 122 matching lines @@
   ASSERT_TRUE(b);
 
   EXPECT_FALSE(a->isDragged());
   EXPECT_FALSE(b->isDragged());
 
   EXPECT_TRUE(matchesUncommonAttributeRuleSet(*a));
   EXPECT_FALSE(matchesUncommonAttributeRuleSet(*b));
 }
 
 }  // namespace blink