Enable Clang warnings for implementation files on all platforms.

chrome/browser/history/android/visit_sql_handler_unittest.cc

 // Copyright (c) 2012 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 <vector>
 
 #include "chrome/browser/history/android/visit_sql_handler.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/history/android/urls_sql_handler.h"
 #include "chrome/browser/history/history_database.h"
 #include "chrome/common/chrome_constants.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::Time;
 using base::TimeDelta;
 
 namespace history {
 
 class VisitSQLHandlerTest : public testing::Test {
  public:
   VisitSQLHandlerTest()
       : urls_sql_handler_(&history_db_),
         visit_sql_handler_(&history_db_) {
   }
-  ~VisitSQLHandlerTest() {
-  }
+  virtual ~VisitSQLHandlerTest() {}
 
  protected:
   virtual void SetUp() {
     // Get a temporary directory for the test DB files.
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     base::FilePath history_db_name = temp_dir_.path().AppendASCII(
         chrome::kHistoryFilename);
     ASSERT_EQ(sql::INIT_OK, history_db_.Init(history_db_name, NULL));
   }
 
@@ skipping 254 matching lines @@
 
   TableIDRow id;
   id.url_id = url_row.id();
   TableIDRows ids;
   ids.push_back(id);
   ASSERT_TRUE(urls_sql_handler_.Delete(ids));
   EXPECT_FALSE(history_db_.GetURLRow(row.url_id(), &url_row));
 }
 
 }  // namespace history