*** DO NOT LAND *** Attempt to understand Regions complexity

Source/core/css/CSSRegionRule.h

Index: Source/core/css/CSSRegionRule.h
diff --git a/Source/core/css/CSSRegionRule.h b/Source/core/css/CSSRegionRule.h
deleted file mode 100644
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--- a/Source/core/css/CSSRegionRule.h
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-/*
- * Copyright (C) 2011 Adobe Systems Incorporated. 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 CSSRegionRule_h
-#define CSSRegionRule_h
-
-#include "core/css/CSSGroupingRule.h"
-
-namespace WebCore {
-
-class StyleRuleRegion;
-
-class CSSRegionRule FINAL : public CSSGroupingRule {
-public:
-    static PassRefPtr<CSSRegionRule> create(StyleRuleRegion* rule, CSSStyleSheet* sheet) { return adoptRef(new CSSRegionRule(rule, sheet)); }
-
-    virtual CSSRule::Type type() const OVERRIDE { return WEBKIT_REGION_RULE; }
-    virtual String cssText() const OVERRIDE;
-
-private:
-    CSSRegionRule(StyleRuleRegion*, CSSStyleSheet* parent);
-};
-
-DEFINE_CSS_RULE_TYPE_CASTS(CSSRegionRule, WEBKIT_REGION_RULE);
-
-}
-
-#endif // CSSRegionRule_h