Remove meta viewport and @viewport CSS rules.

sky/engine/core/css/resolver/StyleResolver.h

Index: sky/engine/core/css/resolver/StyleResolver.h
diff --git a/sky/engine/core/css/resolver/StyleResolver.h b/sky/engine/core/css/resolver/StyleResolver.h
index d580b02d450578fb29406bd3ed7ad14bbc80b326..e0e5a3ec412bb73f2d2dc0f6c6c182277aa09407 100644
--- a/sky/engine/core/css/resolver/StyleResolver.h
+++ b/sky/engine/core/css/resolver/StyleResolver.h
@@ -63,7 +63,6 @@ class StylePropertySet;
 class StyleResolverStats;
 class StyleRule;
 class StyleRuleKeyframes;
-class ViewportStyleResolver;
 
 class MatchResult;
 
@@ -146,8 +145,6 @@ public:
     // |properties| is an array with |count| elements.
     void applyPropertiesToStyle(const CSSPropertyValue* properties, size_t count, RenderStyle*);
 
-    ViewportStyleResolver* viewportStyleResolver() { return m_viewportStyleResolver.get(); }
-
     void addMediaQueryResults(const MediaQueryResultList&);
     MediaQueryResultList* viewportDependentMediaQueryResults() { return &m_viewportDependentMediaQueryResults; }
     bool hasViewportDependentMediaQueries() const { return !m_viewportDependentMediaQueryResults.isEmpty(); }
@@ -236,8 +233,6 @@ private:
     template <StyleResolver::StyleApplicationPass pass>
     void applyAllProperty(StyleResolverState&, CSSValue*);
 
-    void collectViewportRules();
-
     // FIXME: This likely belongs on RuleSet.
     typedef WillBeHeapHashMap<StringImpl*, RefPtrWillBeMember<StyleRuleKeyframes> > KeyframesRuleMap;
     KeyframesRuleMap m_keyframesRuleMap;
@@ -251,8 +246,6 @@ private:
 
     RawPtrWillBeMember<Document> m_document;
 
-    OwnPtrWillBeMember<ViewportStyleResolver> m_viewportStyleResolver;
-
     WillBeHeapListHashSet<RawPtrWillBeMember<CSSStyleSheet>, 16> m_pendingStyleSheets;
 
     // FIXME: The entire logic of collecting features on StyleResolver, as well as transferring them