Style cleanup in preparation for auto-linting base/.

base/thread_local_storage.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef BASE_THREAD_LOCAL_STORAGE_H_
 #define BASE_THREAD_LOCAL_STORAGE_H_
 
 #include "base/basictypes.h"
 
 #if defined(OS_POSIX)
 #include <pthread.h>
 #endif
 
 // Wrapper for thread local storage.  This class doesn't do much except provide
 // an API for portability.
 class ThreadLocalStorage {
  public:
 
   // Prototype for the TLS destructor function, which can be optionally used to
   // cleanup thread local storage on thread exit.  'value' is the data that is
   // stored in thread local storage.
   typedef void (*TLSDestructorFunc)(void* value);
 
   // A key representing one value stored in TLS.
   class Slot {
    public:
-    Slot(TLSDestructorFunc destructor = NULL);
+    explicit Slot(TLSDestructorFunc destructor = NULL);
 
     // This constructor should be used for statics.
     // It returns an uninitialized Slot.
     explicit Slot(base::LinkerInitialized x) {}
 
     // Set up the TLS slot.  Called by the constructor.
     // 'destructor' is a pointer to a function to perform per-thread cleanup of
     // this object.  If set to NULL, no cleanup is done for this TLS slot.
     // Returns false on error.
     bool Initialize(TLSDestructorFunc destructor);
@@ skipping 47 matching lines @@
 #endif  // OS_WIN
 
   DISALLOW_COPY_AND_ASSIGN(ThreadLocalStorage);
 };
 
 // Temporary backwards-compatible name.
 // TODO(evanm): replace all usage of TLSSlot.
 typedef ThreadLocalStorage::Slot TLSSlot;
 
 #endif  // BASE_THREAD_LOCAL_STORAGE_H_