Password manager internals page: clean-up

components/password_manager/core/browser/browser_save_password_progress_logger_unittest.cc

 // Copyright 2014 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 "components/password_manager/core/browser/browser_save_password_progress_logger.h"
 
 #include "components/password_manager/core/browser/stub_password_manager_client.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace password_manager {
 
 namespace {
 
 const char kTestText[] = "test";
 
 // The only purpose of TestLogger is to expose SendLog for the test.
 class TestLogger : public BrowserSavePasswordProgressLogger {
  public:
-  TestLogger(PasswordManagerClient* client)
+  explicit TestLogger(PasswordManagerClient* client)
       : BrowserSavePasswordProgressLogger(client) {}
 
   using BrowserSavePasswordProgressLogger::SendLog;
 };
 
 class MockPasswordManagerClient : public StubPasswordManagerClient {
  public:
   MOCK_METHOD1(LogSavePasswordProgress, void(const std::string& text));
 };
 
 }  // namespace
 
 TEST(BrowserSavePasswordProgressLoggerTest, SendLog) {
   MockPasswordManagerClient client;
   TestLogger logger(&client);
   EXPECT_CALL(client, LogSavePasswordProgress(kTestText)).Times(1);
   logger.SendLog(kTestText);
 }
 
 }  // namespace password_manager