Move webrtc/{base => rtc_base}

webrtc/rtc_base/arraysize.h

 /*
  *  Copyright (c) 2015 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_ARRAYSIZE_H_
-#define WEBRTC_BASE_ARRAYSIZE_H_
+#ifndef WEBRTC_RTC_BASE_ARRAYSIZE_H_
+#define WEBRTC_RTC_BASE_ARRAYSIZE_H_
 
 #include <stddef.h>
 
 // This file defines the arraysize() macro and is derived from Chromium's
 // base/macros.h.
 
 // The arraysize(arr) macro returns the # of elements in an array arr.
 // The expression is a compile-time constant, and therefore can be
 // used in defining new arrays, for example.  If you use arraysize on
 // a pointer by mistake, you will get a compile-time error.
 
 // This template function declaration is used in defining arraysize.
 // Note that the function doesn't need an implementation, as we only
 // use its type.
 template <typename T, size_t N> char (&ArraySizeHelper(T (&array)[N]))[N];
 
 #define arraysize(array) (sizeof(ArraySizeHelper(array)))
 
-#endif  // WEBRTC_BASE_ARRAYSIZE_H_
+#endif  // WEBRTC_RTC_BASE_ARRAYSIZE_H_