Style cleanup in preparation for auto-linting base/.

base/lazy_instance_unittest.cc

 // Copyright (c) 2008 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/at_exit.h"
 #include "base/atomic_sequence_num.h"
 #include "base/lazy_instance.h"
 #include "base/simple_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 23 matching lines @@
 
   static int constructed;
  private:
   int some_int_;
 };
 
 int SlowConstructor::constructed = 0;
 
 class SlowDelegate : public base::DelegateSimpleThread::Delegate {
  public:
-  SlowDelegate(base::LazyInstance<SlowConstructor>* lazy) : lazy_(lazy) { }
+  explicit SlowDelegate(base::LazyInstance<SlowConstructor>* lazy)
+      : lazy_(lazy) {}
+
   virtual void Run() {
     EXPECT_EQ(12, lazy_->Get().some_int());
     EXPECT_EQ(12, lazy_->Pointer()->some_int());
   }
 
  private:
   base::LazyInstance<SlowConstructor>* lazy_;
 };
 
 }  // namespace
@@ skipping 31 matching lines @@
 
     base::DelegateSimpleThreadPool pool("lazy_instance_cons", 5);
     pool.AddWork(&delegate, 20);
     EXPECT_EQ(0, SlowConstructor::constructed);
 
     pool.Start();
     pool.JoinAll();
     EXPECT_EQ(1, SlowConstructor::constructed);
   }
 }