Remove CSSCharsetRule

Source/core/css/CSSStyleSheet.cpp

Index: Source/core/css/CSSStyleSheet.cpp
diff --git a/Source/core/css/CSSStyleSheet.cpp b/Source/core/css/CSSStyleSheet.cpp
index 705d3283da8707459b4002a670ea53176e068975..41ae5b877fed1cdf33ac1a0107ae8f102d5640f9 100644
--- a/Source/core/css/CSSStyleSheet.cpp
+++ b/Source/core/css/CSSStyleSheet.cpp
@@ -26,7 +26,6 @@
 #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"
@@ -252,13 +251,8 @@ CSSRule* CSSStyleSheet::item(unsigned index)
     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();
 }
 
@@ -287,18 +281,7 @@ bool CSSStyleSheet::canAccessRules() const
 
 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)