Use relative filenames for internal includes.

include/libyuv/scale_row.h

 /*
  *  Copyright 2013 The LibYuv 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 INCLUDE_LIBYUV_SCALE_ROW_H_  // NOLINT
 #define INCLUDE_LIBYUV_SCALE_ROW_H_
 
-#include "libyuv/basic_types.h"
-#include "libyuv/scale.h"
+#include "basic_types.h"
+#include "scale.h"
 
 #ifdef __cplusplus
 namespace libyuv {
 extern "C" {
 #endif
 
 #if defined(__pnacl__) || defined(__CLR_VER) || \
     (defined(__i386__) && !defined(__SSE2__))
 #define LIBYUV_DISABLE_X86
 #endif
@@ skipping 468 matching lines @@
                                 uint8* dst_ptr, int dst_width);
 void ScaleRowDown38_3_Box_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride,
                                 uint8* dst_ptr, int dst_width);
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif
 
 #endif  // INCLUDE_LIBYUV_SCALE_ROW_H_  NOLINT