Move webrtc/{base => rtc_base}

webrtc/rtc_base/ignore_wundef.h

 /*
  *  Copyright (c) 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_IGNORE_WUNDEF_H_
-#define WEBRTC_BASE_IGNORE_WUNDEF_H_
+#ifndef WEBRTC_RTC_BASE_IGNORE_WUNDEF_H_
+#define WEBRTC_RTC_BASE_IGNORE_WUNDEF_H_
 
 // If a header file uses #if on possibly undefined macros (and it's for some
 // reason not possible to just fix the header file), include it like this:
 //
 //   RTC_PUSH_IGNORING_WUNDEF()
 //   #include "misbehaving_header.h"
 //   RTC_POP_IGNORING_WUNDEF()
 //
 // This will cause the compiler to not emit -Wundef warnings for that file.
 
 #ifdef __clang__
 #define RTC_PUSH_IGNORING_WUNDEF() \
   _Pragma("clang diagnostic push") \
       _Pragma("clang diagnostic ignored \"-Wundef\"")
 #define RTC_POP_IGNORING_WUNDEF() _Pragma("clang diagnostic pop")
 #else
 #define RTC_PUSH_IGNORING_WUNDEF()
 #define RTC_POP_IGNORING_WUNDEF()
 #endif  // __clang__
 
-#endif  // WEBRTC_BASE_IGNORE_WUNDEF_H_
+#endif  // WEBRTC_RTC_BASE_IGNORE_WUNDEF_H_