Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webdatabase/SQLStatement.h

Index: Source/modules/webdatabase/SQLStatement.h
diff --git a/Source/modules/webdatabase/SQLStatement.h b/Source/modules/webdatabase/SQLStatement.h
index 89c8f79c24361e43f523ce31b342094d0ea9fbec..58c8759980373fb80474952528e26a60c52b2e61 100644
--- a/Source/modules/webdatabase/SQLStatement.h
+++ b/Source/modules/webdatabase/SQLStatement.h
@@ -45,17 +45,17 @@ class SQLStatementCallback;
 class SQLStatementErrorCallback;
 class SQLTransaction;
 
-class SQLStatement : public AbstractSQLStatement {
+class SQLStatement FINAL : public AbstractSQLStatement {
 public:
     static PassOwnPtr<SQLStatement> create(Database*,
         PassOwnPtr<SQLStatementCallback>, PassOwnPtr<SQLStatementErrorCallback>);
 
     bool performCallback(SQLTransaction*);
 
-    virtual void setBackend(AbstractSQLStatementBackend*);
+    virtual void setBackend(AbstractSQLStatementBackend*) OVERRIDE;
 
-    virtual bool hasCallback();
-    virtual bool hasErrorCallback();
+    virtual bool hasCallback() OVERRIDE;
+    virtual bool hasErrorCallback() OVERRIDE;
 
 private:
     SQLStatement(Database*, PassOwnPtr<SQLStatementCallback>, PassOwnPtr<SQLStatementErrorCallback>);