iwyu: Cleanup in the following files:

base/base_paths.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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_BASE_PATHS_H_
 #define BASE_BASE_PATHS_H_
 #pragma once
 
 // This file declares path keys for the base module.  These can be used with
 // the PathService to access various special directories and files.
 
-#include "base/basictypes.h"
+#include "build/build_config.h"
+
 #if defined(OS_WIN)
 #include "base/base_paths_win.h"
 #elif defined(OS_MACOSX)
 #include "base/base_paths_mac.h"
 #endif
 
 namespace base {
 
 enum {
   PATH_START = 0,
@@ skipping 16 matching lines @@
                 // This is $XDG_CACHE_HOME on Linux and
                 // ~/Library/Caches on Mac.
 #endif
 
   PATH_END
 };
 
 }  // namespace base
 
 #endif  // BASE_BASE_PATHS_H_