Remove meta viewport and @viewport CSS rules.

sky/engine/core/css/StyleRule.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2006, 2008, 2012, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 28 matching lines @@
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     enum Type {
         Unknown, // Not used.
         Style,
         Media,
         FontFace = 4,
         Keyframes = 5,
         Keyframe, // Not used. These are internally non-rule StyleKeyframe objects.
         Supports = 12,
-        Viewport = 15,
         Filter = 17
     };
 
     Type type() const { return static_cast<Type>(m_type); }
 
     bool isFontFaceRule() const { return type() == FontFace; }
     bool isKeyframesRule() const { return type() == Keyframes; }
     bool isMediaRule() const { return type() == Media; }
     bool isStyleRule() const { return type() == Style; }
     bool isSupportsRule() const { return type() == Supports; }
-    bool isViewportRule() const { return type() == Viewport; }
     bool isFilterRule() const { return type() == Filter; }
 
     PassRefPtrWillBeRawPtr<StyleRuleBase> copy() const;
 
 #if !ENABLE(OILPAN)
     void deref()
     {
         if (derefBase())
             destroy();
     }
@@ skipping 123 matching lines @@
     void traceAfterDispatch(Visitor* visitor) { StyleRuleGroup::traceAfterDispatch(visitor); }
 
 private:
     StyleRuleSupports(const String& conditionText, bool conditionIsSupported, WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> >& adoptRules);
     StyleRuleSupports(const StyleRuleSupports&);
 
     String m_conditionText;
     bool m_conditionIsSupported;
 };
 
-class StyleRuleViewport : public StyleRuleBase {
-public:
-    static PassRefPtrWillBeRawPtr<StyleRuleViewport> create() { return adoptRefWillBeNoop(new StyleRuleViewport); }
-
-    ~StyleRuleViewport();
-
-    const StylePropertySet& properties() const { return *m_properties; }
-    MutableStylePropertySet& mutableProperties();
-
-    void setProperties(PassRefPtrWillBeRawPtr<StylePropertySet>);
-
-    PassRefPtrWillBeRawPtr<StyleRuleViewport> copy() const { return adoptRefWillBeNoop(new StyleRuleViewport(*this)); }
-
-    void traceAfterDispatch(Visitor*);
-
-private:
-    StyleRuleViewport();
-    StyleRuleViewport(const StyleRuleViewport&);
-
-    RefPtrWillBeMember<StylePropertySet> m_properties; // Cannot be null
-};
-
 class StyleRuleFilter : public StyleRuleBase {
 public:
     static PassRefPtrWillBeRawPtr<StyleRuleFilter> create(const String& filterName) { return adoptRefWillBeNoop(new StyleRuleFilter(filterName)); }
 
     ~StyleRuleFilter();
 
     const String& filterName() const { return m_filterName; }
 
     const StylePropertySet& properties() const { return *m_properties; }
     MutableStylePropertySet& mutableProperties();
@@ skipping 12 matching lines @@
     RefPtrWillBeMember<StylePropertySet> m_properties;
 };
 
 #define DEFINE_STYLE_RULE_TYPE_CASTS(Type) \
     DEFINE_TYPE_CASTS(StyleRule##Type, StyleRuleBase, rule, rule->is##Type##Rule(), rule.is##Type##Rule())
 
 DEFINE_TYPE_CASTS(StyleRule, StyleRuleBase, rule, rule->isStyleRule(), rule.isStyleRule());
 DEFINE_STYLE_RULE_TYPE_CASTS(FontFace);
 DEFINE_STYLE_RULE_TYPE_CASTS(Media);
 DEFINE_STYLE_RULE_TYPE_CASTS(Supports);
-DEFINE_STYLE_RULE_TYPE_CASTS(Viewport);
 DEFINE_STYLE_RULE_TYPE_CASTS(Filter);
 
 } // namespace blink
 
 #endif // StyleRule_h