Remove CSS_REGIONS compile flag from Blink.

Source/core/css/StyleRule.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 2012 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 56 matching lines @@
         return;
     case Page:
         static_cast<const StyleRulePage*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case FontFace:
         static_cast<const StyleRuleFontFace*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Media:
         static_cast<const StyleRuleMedia*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
-#if ENABLE(CSS_REGIONS)
     case Region:
         static_cast<const StyleRuleRegion*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
-#endif
     case Import:
         static_cast<const StyleRuleImport*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Keyframes:
         static_cast<const StyleRuleKeyframes*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Supports:
     case HostInternal:
         static_cast<const StyleRuleHost*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
 #if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         static_cast<const StyleRuleViewport*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
 #endif
     case Filter:
         static_cast<const StyleRuleFilter*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
         return;
     case Unknown:
     case Charset:
     case Keyframe:
-#if !ENABLE(CSS_REGIONS)
-    case Region:
-#endif
         ASSERT_NOT_REACHED();
         return;
     }
     ASSERT_NOT_REACHED();
 }
 
 void StyleRuleBase::destroy()
 {
     switch (type()) {
     case Style:
         delete static_cast<StyleRule*>(this);
         return;
     case Page:
         delete static_cast<StyleRulePage*>(this);
         return;
     case FontFace:
         delete static_cast<StyleRuleFontFace*>(this);
         return;
     case Media:
         delete static_cast<StyleRuleMedia*>(this);
         return;
     case Supports:
         delete static_cast<StyleRuleSupports*>(this);
         return;
-#if ENABLE(CSS_REGIONS)
     case Region:
         delete static_cast<StyleRuleRegion*>(this);
         return;
-#endif
     case Import:
         delete static_cast<StyleRuleImport*>(this);
         return;
     case Keyframes:
         delete static_cast<StyleRuleKeyframes*>(this);
         return;
     case HostInternal:
         delete static_cast<StyleRuleHost*>(this);
         return;
 #if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         delete static_cast<StyleRuleViewport*>(this);
         return;
 #endif
     case Filter:
         delete static_cast<StyleRuleFilter*>(this);
         return;
     case Unknown:
     case Charset:
     case Keyframe:
-#if !ENABLE(CSS_REGIONS)
-    case Region:
-#endif
         ASSERT_NOT_REACHED();
         return;
     }
     ASSERT_NOT_REACHED();
 }
 
 PassRefPtr<StyleRuleBase> StyleRuleBase::copy() const
 {
     switch (type()) {
     case Style:
         return static_cast<const StyleRule*>(this)->copy();
     case Page:
         return static_cast<const StyleRulePage*>(this)->copy();
     case FontFace:
         return static_cast<const StyleRuleFontFace*>(this)->copy();
     case Media:
         return static_cast<const StyleRuleMedia*>(this)->copy();
     case Supports:
         return static_cast<const StyleRuleSupports*>(this)->copy();
-#if ENABLE(CSS_REGIONS)
     case Region:
         return static_cast<const StyleRuleRegion*>(this)->copy();
-#endif
     case Import:
         // FIXME: Copy import rules.
         ASSERT_NOT_REACHED();
         return 0;
     case Keyframes:
         return static_cast<const StyleRuleKeyframes*>(this)->copy();
     case HostInternal:
         return static_cast<const StyleRuleHost*>(this)->copy();
 #if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         return static_cast<const StyleRuleViewport*>(this)->copy();
 #endif
     case Filter:
         return static_cast<const StyleRuleFilter*>(this)->copy();
     case Unknown:
     case Charset:
     case Keyframe:
-#if !ENABLE(CSS_REGIONS)
-    case Region:
-#endif
         ASSERT_NOT_REACHED();
         return 0;
     }
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 PassRefPtr<CSSRule> StyleRuleBase::createCSSOMWrapper(CSSStyleSheet* parentSheet, CSSRule* parentRule) const
 {
     RefPtr<CSSRule> rule;
     StyleRuleBase* self = const_cast<StyleRuleBase*>(this);
     switch (type()) {
     case Style:
         rule = CSSStyleRule::create(static_cast<StyleRule*>(self), parentSheet);
         break;
     case Page:
         rule = CSSPageRule::create(static_cast<StyleRulePage*>(self), parentSheet);
         break;
     case FontFace:
         rule = CSSFontFaceRule::create(static_cast<StyleRuleFontFace*>(self), parentSheet);
         break;
     case Media:
         rule = CSSMediaRule::create(static_cast<StyleRuleMedia*>(self), parentSheet);
         break;
     case Supports:
         rule = CSSSupportsRule::create(static_cast<StyleRuleSupports*>(self), parentSheet);
         break;
-#if ENABLE(CSS_REGIONS)
     case Region:
         rule = WebKitCSSRegionRule::create(static_cast<StyleRuleRegion*>(self), parentSheet);

[eseidel, 2013/04/30 00:11:09]

The constructor for WebKitCSSRegionRule should likely
ASSERT(RuntimeEnabledFeatures::isCSSRegionsEnabled()) to make sure we don't
create one of these when we don't mean to.

         break;
-#endif
     case Import:
         rule = CSSImportRule::create(static_cast<StyleRuleImport*>(self), parentSheet);
         break;
     case Keyframes:
         rule = WebKitCSSKeyframesRule::create(static_cast<StyleRuleKeyframes*>(self), parentSheet);
         break;
 #if ENABLE(CSS_DEVICE_ADAPTATION)
     case Viewport:
         rule = WebKitCSSViewportRule::create(static_cast<StyleRuleViewport*>(self), parentSheet);
         break;
 #endif
     case HostInternal:
         rule = CSSHostRule::create(static_cast<StyleRuleHost*>(self), parentSheet);
         break;
     case Filter:
         rule = WebKitCSSFilterRule::create(static_cast<StyleRuleFilter*>(self), parentSheet);
         break;
     case Unknown:
     case Charset:
     case Keyframe:
-#if !ENABLE(CSS_REGIONS)
-    case Region:
-#endif
         ASSERT_NOT_REACHED();
         return 0;
     }
     if (parentRule)
         rule->setParentRule(parentRule);
     return rule.release();
 }
 
 unsigned StyleRule::averageSizeInBytes()
 {
@@ skipping 251 matching lines @@
 }
 
 void StyleRuleFilter::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_filterName);
     info.addMember(m_properties);
 }
 
 } // namespace WebCore