Remove CSS regions support, keeping a bare minimum to support "region-based" multicol.

Source/bindings/v8/custom/V8CSSRuleCustom.cpp

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 24 matching lines @@
 #include "V8CSSFontFaceRule.h"
 #include "V8CSSImportRule.h"
 #include "V8CSSKeyframeRule.h"
 #include "V8CSSKeyframesRule.h"
 #include "V8CSSMediaRule.h"
 #include "V8CSSPageRule.h"
 #include "V8CSSStyleRule.h"
 #include "V8CSSSupportsRule.h"
 #include "V8CSSViewportRule.h"
 #include "V8WebKitCSSFilterRule.h"
-#include "V8WebKitCSSRegionRule.h"
 
 namespace WebCore {
 
 v8::Handle<v8::Object> wrap(CSSRule* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     ASSERT(impl);
     switch (impl->type()) {
     case CSSRule::UNKNOWN_RULE:
         // CSSUnknownRule.idl is explicitly excluded as it doesn't add anything
         // over CSSRule.idl (see core/core.gypi: 'core_idl_files').
@@ skipping 12 matching lines @@
     case CSSRule::PAGE_RULE:
         return wrap(toCSSPageRule(impl), creationContext, isolate);
     case CSSRule::KEYFRAME_RULE:
         return wrap(toCSSKeyframeRule(impl), creationContext, isolate);
     case CSSRule::KEYFRAMES_RULE:
         return wrap(toCSSKeyframesRule(impl), creationContext, isolate);
     case CSSRule::SUPPORTS_RULE:
         return wrap(toCSSSupportsRule(impl), creationContext, isolate);
     case CSSRule::VIEWPORT_RULE:
         return wrap(toCSSViewportRule(impl), creationContext, isolate);
-    case CSSRule::WEBKIT_REGION_RULE:
-        return wrap(toCSSRegionRule(impl), creationContext, isolate);
     case CSSRule::WEBKIT_FILTER_RULE:
         return wrap(toCSSFilterRule(impl), creationContext, isolate);
     }
     return V8CSSRule::createWrapper(impl, creationContext, isolate);
 }
 
 } // namespace WebCore