RefCounted types should not have public destructors, sql/ and jingle/ edition

sql/sqlite_features_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "sql/connection.h"
 #include "sql/statement.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/sqlite/sqlite3.h"
 
 // Test that certain features are/are-not enabled in our SQLite.
 
 namespace {
 
 
 class StatementErrorHandler : public sql::ErrorDelegate {
  public:
   StatementErrorHandler() : error_(SQLITE_OK) {}
 
   virtual int OnError(int error, sql::Connection* connection,
-                      sql::Statement* stmt) {
+                      sql::Statement* stmt) OVERRIDE {
     error_ = error;
     const char* sql_txt = stmt ? stmt->GetSQLStatement() : NULL;
     sql_text_ = sql_txt ? sql_txt : "no statement available";
     return error;
   }
 
   int error() const { return error_; }
 
   void reset_error() {
     sql_text_.clear();
     error_ = SQLITE_OK;
   }
 
   const char* sql_statement() const { return sql_text_.c_str(); }
 
+ protected:
+  virtual ~StatementErrorHandler() {}
+
  private:
   int error_;
   std::string sql_text_;
 };
 
 class SQLiteFeaturesTest : public testing::Test {
  public:
   SQLiteFeaturesTest() : error_handler_(new StatementErrorHandler) {}
 
   void SetUp() {
@@ skipping 41 matching lines @@
 TEST_F(SQLiteFeaturesTest, FTS2) {
   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts2(x)"));
 }
 
 // fts3 is used for current history files, and also for WebDatabase.
 TEST_F(SQLiteFeaturesTest, FTS3) {
   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts3(x)"));
 }
 
 }  // namespace