Revert of Use removeFontFace to avoid resetting fontSelector.

Source/core/css/StyleSheetContents.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/StyleSheetContents.h"
 
 #include "core/css/parser/BisonCSSParser.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/MediaList.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/StyleRule.h"
 #include "core/css/StyleRuleImport.h"
-#include "core/dom/Document.h"
+#include "core/css/resolver/StyleResolver.h"
 #include "core/dom/Node.h"
 #include "core/dom/StyleEngine.h"
 #include "core/fetch/CSSStyleSheetResource.h"
 #include "core/frame/UseCounter.h"
 #include "platform/TraceEvent.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/Deque.h"
 
 namespace WebCore {
 
@@ skipping 197 matching lines @@
         m_importRules[childVectorIndex]->setParentStyleSheet(this);
         m_importRules[childVectorIndex]->requestStyleSheet();
         // FIXME: Stylesheet doesn't actually change meaningfully before the imported sheets are loaded.
         return true;
     }
     // Inserting @import rule after a non-import rule is not allowed.
     if (rule->isImportRule())
         return false;
     childVectorIndex -= m_importRules.size();
 
-    if (rule->isFontFaceRule())
-        setHasFontFaceRule(true);
     m_childRules.insert(childVectorIndex, rule);
     return true;
 }
 
 void StyleSheetContents::wrapperDeleteRule(unsigned index)
 {
     ASSERT(m_isMutable);
     ASSERT_WITH_SECURITY_IMPLICATION(index < ruleCount());
 
     unsigned childVectorIndex = index;
     if (hasCharsetRule()) {
         if (childVectorIndex == 0) {
             clearCharsetRule();
             return;
         }
         --childVectorIndex;
     }
     if (childVectorIndex < m_importRules.size()) {
         m_importRules[childVectorIndex]->clearParentStyleSheet();
-        if (m_importRules[childVectorIndex]->isFontFaceRule())
-            notifyRemoveFontFaceRule(toStyleRuleFontFace(m_importRules[childVectorIndex].get()));
         m_importRules.remove(childVectorIndex);
         return;
     }
     childVectorIndex -= m_importRules.size();
 
-    if (m_childRules[childVectorIndex]->isFontFaceRule())
-        notifyRemoveFontFaceRule(toStyleRuleFontFace(m_childRules[childVectorIndex].get()));
     m_childRules.remove(childVectorIndex);
 }
 
 void StyleSheetContents::parserAddNamespace(const AtomicString& prefix, const AtomicString& uri)
 {
     if (uri.isNull() || prefix.isNull())
         return;
     PrefixNamespaceURIMap::AddResult result = m_namespaces.add(prefix, uri);
     if (result.isNewEntry)
         return;
@@ skipping 238 matching lines @@
 
     // Clearing the ruleSet means we need to recreate the styleResolver data structures.
     // See the StyleResolver calls in ScopedStyleResolver::addRulesFromSheet.
     for (size_t i = 0; i < m_clients.size(); ++i) {
         if (Document* document = m_clients[i]->ownerDocument())
             document->styleEngine()->clearResolver();
     }
     m_ruleSet.clear();
 }
 
-void StyleSheetContents::notifyRemoveFontFaceRule(const StyleRuleFontFace* fontFaceRule)
-{
-    StyleSheetContents* root = rootStyleSheet();
-    if (root->m_clients.isEmpty())
-        return;
-
-    for (unsigned i = 0; i < root->m_clients.size(); ++i) {
-        if (Node* ownerNode = root->m_clients[0]->ownerNode())
-            ownerNode->document().styleEngine()->removeFontFaceRules(Vector<const StyleRuleFontFace*>(1, fontFaceRule));
-    }
-}
-
-static void findFontFaceRulesFromRules(const Vector<RefPtr<StyleRuleBase> >& rules, Vector<const StyleRuleFontFace*>& fontFaceRules)
-{
-    for (unsigned i = 0; i < rules.size(); ++i) {
-        StyleRuleBase* rule = rules[i].get();
-
-        if (rule->isFontFaceRule()) {
-            fontFaceRules.append(toStyleRuleFontFace(rule));
-        } else if (rule->isMediaRule()) {
-            StyleRuleMedia* mediaRule = static_cast<StyleRuleMedia*>(rule);
-            // We cannot know whether the media rule matches or not, but
-            // for safety, remove @font-face in the media rule (if exists).
-            findFontFaceRulesFromRules(mediaRule->childRules(), fontFaceRules);
-        }
-    }
-}
-
-void StyleSheetContents::findFontFaceRules(Vector<const StyleRuleFontFace*>& fontFaceRules)
-{
-    for (unsigned i = 0; i < m_importRules.size(); ++i) {
-        if (!m_importRules[i]->styleSheet())
-            continue;
-        m_importRules[i]->styleSheet()->findFontFaceRules(fontFaceRules);
-    }
-
-    findFontFaceRulesFromRules(childRules(), fontFaceRules);
-}
 
 }