Change StyleResolver::document() to be private

Source/core/css/resolver/ScopedStyleResolver.cpp

Index: Source/core/css/resolver/ScopedStyleResolver.cpp
diff --git a/Source/core/css/resolver/ScopedStyleResolver.cpp b/Source/core/css/resolver/ScopedStyleResolver.cpp
index 720cc2e1d06417ae08d6aef7f8dd3fee64420744..1a05e978e708f76a80fffa1fe2f6c691a6f9d66b 100644
--- a/Source/core/css/resolver/ScopedStyleResolver.cpp
+++ b/Source/core/css/resolver/ScopedStyleResolver.cpp
@@ -68,16 +68,10 @@ ScopedStyleResolver* ScopedStyleResolver::parent() const
     return 0;
 }
 
-void ScopedStyleResolver::addRulesFromSheet(CSSStyleSheet* cssSheet, const MediaQueryEvaluator& medium, StyleResolver* resolver)
+unsigned ScopedStyleResolver::appendCSSStyleSheet(CSSStyleSheet* cssSheet)
 {
     m_authorStyleSheets.append(cssSheet);
-    unsigned index = m_authorStyleSheets.size() - 1;
-    StyleSheetContents* sheet = cssSheet->contents();
-
-    AddRuleFlags addRuleFlags = resolver->document().securityOrigin()->canRequest(sheet->baseURL()) ? RuleHasDocumentSecurityOrigin : RuleHasNoSpecialState;
-    const RuleSet& ruleSet = sheet->ensureRuleSet(medium, addRuleFlags);
-    resolver->addMediaQueryResults(ruleSet.viewportDependentMediaQueryResults());
-    resolver->processScopedRules(ruleSet, cssSheet, index, treeScope().rootNode());
+    return m_authorStyleSheets.size() - 1;
 }
 
 void ScopedStyleResolver::collectFeaturesTo(RuleFeatureSet& features, HashSet<const StyleSheetContents*>& visitedSharedStyleSheetContents) const