Remove meta viewport and @viewport CSS rules.

sky/engine/core/css/CSSViewportRule.h

Index: sky/engine/core/css/CSSViewportRule.h
diff --git a/sky/engine/core/css/CSSViewportRule.h b/sky/engine/core/css/CSSViewportRule.h
deleted file mode 100644
index b9298100c586d7561e06785fd98798c69b81f869..0000000000000000000000000000000000000000
--- a/sky/engine/core/css/CSSViewportRule.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2012 Intel Corporation. All rights reserved.
- * Copyright (C) 2012 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above
- *    copyright notice, this list of conditions and the following
- *    disclaimer.
- * 2. Redistributions in binary form must reproduce the above
- *    copyright notice, this list of conditions and the following
- *    disclaimer in the documentation and/or other materials
- *    provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef CSSViewportRule_h
-#define CSSViewportRule_h
-
-#include "core/css/CSSRule.h"
-#include "platform/heap/Handle.h"
-
-namespace blink {
-
-class CSSStyleDeclaration;
-class StyleRuleViewport;
-class StyleRuleCSSStyleDeclaration;
-
-class CSSViewportRule final: public CSSRule {
-public:
-    static PassRefPtrWillBeRawPtr<CSSViewportRule> create(StyleRuleViewport* viewportRule, CSSStyleSheet* sheet)
-    {
-        return adoptRefWillBeNoop(new CSSViewportRule(viewportRule, sheet));
-    }
-    virtual ~CSSViewportRule();
-
-    virtual CSSRule::Type type() const override { return VIEWPORT_RULE; }
-    virtual String cssText() const override;
-    virtual void reattach(StyleRuleBase*) override;
-
-    CSSStyleDeclaration* style() const;
-
-    virtual void trace(Visitor*) override;
-
-private:
-    CSSViewportRule(StyleRuleViewport*, CSSStyleSheet*);
-
-    RefPtrWillBeMember<StyleRuleViewport> m_viewportRule;
-    mutable RefPtrWillBeMember<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
-};
-
-DEFINE_CSS_RULE_TYPE_CASTS(CSSViewportRule, VIEWPORT_RULE);
-
-} // namespace blink
-
-#endif // CSSViewportRule_h