Reland of Enable GN check for webrtc/base

webrtc/base/location.h

 /*
  *  Copyright 2016 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.
  */
 
 #ifndef WEBRTC_BASE_LOCATION_H_
 #define WEBRTC_BASE_LOCATION_H_
 
 #include <string>
 
-#include "webrtc/system_wrappers/include/stringize_macros.h"
+#include "webrtc/base/stringize_macros.h"
 
 namespace rtc {
 
 // Location provides basic info where of an object was constructed, or was
 // significantly brought to life.
 // This is a stripped down version of:
 // https://code.google.com/p/chromium/codesearch#chromium/src/base/location.h
 class Location {
  public:
   // Constructor should be called with a long-lived char*, such as __FILE__.
@@ skipping 21 matching lines @@
 
 // Define a macro to record the current source location.
 #define RTC_FROM_HERE RTC_FROM_HERE_WITH_FUNCTION(__FUNCTION__)
 
 #define RTC_FROM_HERE_WITH_FUNCTION(function_name) \
   ::rtc::Location(function_name, __FILE__ ":" STRINGIZE(__LINE__))
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_LOCATION_H_