Fix virtual/override/final usage in Source/core/xml/.

Source/core/xml/parser/XMLDocumentParser.cpp

Index: Source/core/xml/parser/XMLDocumentParser.cpp
diff --git a/Source/core/xml/parser/XMLDocumentParser.cpp b/Source/core/xml/parser/XMLDocumentParser.cpp
index 27ae49426b1196f4ec67b2e4fcf3bda5daa461c6..a01f145b6f09edadcf993a591a0bb9dd1c1a5f4c 100644
--- a/Source/core/xml/parser/XMLDocumentParser.cpp
+++ b/Source/core/xml/parser/XMLDocumentParser.cpp
@@ -147,7 +147,7 @@ public:
         }
     }
 
-    virtual ~PendingStartElementNSCallback()
+    ~PendingStartElementNSCallback() override
     {
         for (int i = 0; i < m_namespaceCount * 2; ++i)
             xmlFree(m_namespaces[i]);
@@ -158,7 +158,7 @@ public:
         xmlFree(m_attributes);
     }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->startElementNs(m_localName, m_prefix, m_uri,
             m_namespaceCount, const_cast<const xmlChar**>(m_namespaces),
@@ -178,7 +178,7 @@ private:
 
 class PendingEndElementNSCallback final : public XMLDocumentParser::PendingCallback {
 public:
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->endElementNs();
     }
@@ -192,12 +192,12 @@ public:
     {
     }
 
-    virtual ~PendingCharactersCallback()
+    ~PendingCharactersCallback() override
     {
         xmlFree(m_chars);
     }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->characters(m_chars, m_length);
     }
@@ -215,7 +215,7 @@ public:
     {
     }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->processingInstruction(m_target, m_data);
     }
@@ -229,7 +229,7 @@ class PendingCDATABlockCallback final : public XMLDocumentParser::PendingCallbac
 public:
     explicit PendingCDATABlockCallback(const String& text) : m_text(text) { }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->cdataBlock(m_text);
     }
@@ -242,7 +242,7 @@ class PendingCommentCallback final : public XMLDocumentParser::PendingCallback {
 public:
     explicit PendingCommentCallback(const String& text) : m_text(text) { }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->comment(m_text);
     }
@@ -260,7 +260,7 @@ public:
     {
     }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->internalSubset(m_name, m_externalID, m_systemID);
     }
@@ -281,12 +281,12 @@ public:
     {
     }
 
-    virtual ~PendingErrorCallback()
+    ~PendingErrorCallback() override
     {
         xmlFree(m_message);
     }
 
-    virtual void call(XMLDocumentParser* parser) override
+    void call(XMLDocumentParser* parser) override
     {
         parser->handleError(m_type, reinterpret_cast<char*>(m_message), TextPosition(m_lineNumber, m_columnNumber));
     }