Remove CSSCharsetRule

Source/core/css/CSSStyleSheet.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/css/CSSStyleSheet.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8PerIsolateData.h"
 #include "core/HTMLNames.h"
 #include "core/SVGNames.h"
-#include "core/css/CSSCharsetRule.h"
 #include "core/css/CSSImportRule.h"
 #include "core/css/CSSRuleList.h"
 #include "core/css/MediaList.h"
 #include "core/css/StyleRule.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/css/parser/CSSParser.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/Node.h"
 #include "core/frame/UseCounter.h"
@@ skipping 205 matching lines @@
 {
     unsigned ruleCount = length();
     if (index >= ruleCount)
         return 0;
 
     if (m_childRuleCSSOMWrappers.isEmpty())
         m_childRuleCSSOMWrappers.grow(ruleCount);
     ASSERT(m_childRuleCSSOMWrappers.size() == ruleCount);
 
     RefPtrWillBeMember<CSSRule>& cssRule = m_childRuleCSSOMWrappers[index];
-    if (!cssRule) {
-        if (index == 0 && m_contents->hasCharsetRule()) {
-            ASSERT(!m_contents->ruleAt(0));
-            cssRule = CSSCharsetRule::create(this, m_contents->encodingFromCharsetRule());
-        } else
-            cssRule = m_contents->ruleAt(index)->createCSSOMWrapper(this);
-    }
+    if (!cssRule)
+        cssRule = m_contents->ruleAt(index)->createCSSOMWrapper(this);
     return cssRule.get();
 }
 
 void CSSStyleSheet::clearOwnerNode()
 {
     didMutate(EntireStyleSheetUpdate);
     if (m_ownerNode)
         m_contents->unregisterClient(this);
     m_ownerNode = nullptr;
 }
 
 bool CSSStyleSheet::canAccessRules() const
 {
     if (m_isInlineStylesheet)
         return true;
     KURL baseURL = m_contents->baseURL();
     if (baseURL.isEmpty())
         return true;
     Document* document = ownerDocument();
     if (!document)
         return true;
     if (document->securityOrigin()->canRequest(baseURL))
         return true;
     return false;
 }
 
 PassRefPtrWillBeRawPtr<CSSRuleList> CSSStyleSheet::rules()
 {
-    if (!canAccessRules())
-        return nullptr;
-    // IE behavior.
-    RefPtrWillBeRawPtr<StaticCSSRuleList> nonCharsetRules(StaticCSSRuleList::create());
-    unsigned ruleCount = length();
-    for (unsigned i = 0; i < ruleCount; ++i) {
-        CSSRule* rule = item(i);
-        if (rule->type() == CSSRule::CHARSET_RULE)
-            continue;
-        nonCharsetRules->rules().append(rule);
-    }
-    return nonCharsetRules.release();
+    return cssRules();
 }
 
 unsigned CSSStyleSheet::insertRule(const String& ruleString, unsigned index, ExceptionState& exceptionState)
 {
     ASSERT(m_childRuleCSSOMWrappers.isEmpty() || m_childRuleCSSOMWrappers.size() == m_contents->ruleCount());
 
     if (index > length()) {
         exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is larger than the maximum index (" + String::number(length()) + ").");
         return 0;
     }
@@ skipping 147 matching lines @@
     visitor->trace(m_mediaQueries);
     visitor->trace(m_ownerNode);
     visitor->trace(m_ownerRule);
     visitor->trace(m_mediaCSSOMWrapper);
     visitor->trace(m_childRuleCSSOMWrappers);
     visitor->trace(m_ruleListCSSOMWrapper);
     StyleSheet::trace(visitor);
 }
 
 } // namespace blink