Reland of Enable GN check for webrtc/base

webrtc/base/stringize_macros.h

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 // Modified from the Chromium original:
 // src/base/strings/stringize_macros.h
 
 // This file defines preprocessor macros for stringizing preprocessor
 // symbols (or their output) and manipulating preprocessor symbols
 // that define strings.
 
-#ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_STRINGIZE_MACROS_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_STRINGIZE_MACROS_H_
+#ifndef WEBRTC_BASE_STRINGIZE_MACROS_H_
+#define WEBRTC_BASE_STRINGIZE_MACROS_H_
 
 // This is not very useful as it does not expand defined symbols if
 // called directly. Use its counterpart without the _NO_EXPANSION
 // suffix, below.
 #define STRINGIZE_NO_EXPANSION(x) #x
 
 // Use this to quote the provided parameter, first expanding it if it
 // is a preprocessor symbol.
 //
 // For example, if:
 //   #define A FOO
 //   #define B(x) myobj->FunctionCall(x)
 //
 // Then:
 //   STRINGIZE(A) produces "FOO"
 //   STRINGIZE(B(y)) produces "myobj->FunctionCall(y)"
 #define STRINGIZE(x) STRINGIZE_NO_EXPANSION(x)
 
-#endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_STRINGIZE_MACROS_H_
+#endif  // WEBRTC_BASE_STRINGIZE_MACROS_H_