Style cleanup in preparation for auto-linting base/.

base/waitable_event_watcher_unittest.cc

 // Copyright (c) 2009 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 "base/message_loop.h"
 #include "base/platform_thread.h"
 #include "base/waitable_event.h"
 #include "base/waitable_event_watcher.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::WaitableEvent;
 using base::WaitableEventWatcher;
 
 namespace {
 
 class QuitDelegate : public WaitableEventWatcher::Delegate {
  public:
   virtual void OnWaitableEventSignaled(WaitableEvent* event) {
     MessageLoop::current()->Quit();
   }
 };
 
 class DecrementCountDelegate : public WaitableEventWatcher::Delegate {
  public:
-  DecrementCountDelegate(int* counter) : counter_(counter) {
+  explicit DecrementCountDelegate(int* counter) : counter_(counter) {
   }
   virtual void OnWaitableEventSignaled(WaitableEvent* object) {
     --(*counter_);
   }
  private:
   int* counter_;
 };
 
 void RunTest_BasicSignal(MessageLoop::Type message_loop_type) {
   MessageLoop message_loop(message_loop_type);
@@ skipping 113 matching lines @@
   RunTest_OutlivesMessageLoop(MessageLoop::TYPE_DEFAULT);
   RunTest_OutlivesMessageLoop(MessageLoop::TYPE_IO);
   RunTest_OutlivesMessageLoop(MessageLoop::TYPE_UI);
 }
 
 TEST(WaitableEventWatcherTest, DeleteUnder) {
   RunTest_DeleteUnder(MessageLoop::TYPE_DEFAULT);
   RunTest_DeleteUnder(MessageLoop::TYPE_IO);
   RunTest_DeleteUnder(MessageLoop::TYPE_UI);
 }