libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_common.h

 /*
  *  Copyright (c) 2010 The WebM 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.
  */
 
@@ skipping 31 matching lines @@
 // Use this for variably-sized arrays.
 #define vp9_copy_array(dest, src, n) {       \
     assert(sizeof(*dest) == sizeof(*src));   \
     vpx_memcpy(dest, src, n * sizeof(*src)); \
   }
 
 #define vp9_zero(dest) vpx_memset(&(dest), 0, sizeof(dest))
 #define vp9_zero_array(dest, n) vpx_memset(dest, 0, n * sizeof(*dest))
 
 static INLINE uint8_t clip_pixel(int val) {
-  return (val > 255) ? 255u : (val < 0) ? 0u : val;
+  return (val > 255) ? 255 : (val < 0) ? 0 : val;
 }
 
 static INLINE int clamp(int value, int low, int high) {
   return value < low ? low : (value > high ? high : value);
 }
 
 static INLINE double fclamp(double value, double low, double high) {
   return value < low ? low : (value > high ? high : value);
 }
 
@@ skipping 23 matching lines @@
 #define VP9_SYNC_CODE_2 0x42
 
 #define VP9_FRAME_MARKER 0x2
 
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_COMMON_VP9_COMMON_H_