Revert of Use removeFontFace to avoid resetting fontSelector.

Source/core/css/StyleSheetContents.cpp

Index: Source/core/css/StyleSheetContents.cpp
diff --git a/Source/core/css/StyleSheetContents.cpp b/Source/core/css/StyleSheetContents.cpp
index 198731a8fb2b7bb7f7da73b97d568db6bdc813ed..3ffcb41b39983fdd9935b01be08ab2451d873b5f 100644
--- a/Source/core/css/StyleSheetContents.cpp
+++ b/Source/core/css/StyleSheetContents.cpp
@@ -27,7 +27,7 @@
 #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"
@@ -265,8 +265,6 @@
 
     childVectorIndex -= m_importRules.size();
 
-    if (rule->isFontFaceRule())
-        setHasFontFaceRule(true);
     m_childRules.insert(childVectorIndex, rule);
     return true;
 }
@@ -286,15 +284,11 @@
     }
     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);
 }
 
@@ -579,43 +573,5 @@
     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);
-}
-
-}
+
+}