libvpx: Pull from upstream

source/libvpx/tools_common.h

Index: source/libvpx/tools_common.h
diff --git a/source/libvpx/tools_common.h b/source/libvpx/tools_common.h
index de6c38f0f5b1584c50fe838365dc8eb73881eb19..aa7f025992e37731bbbc9c4ca7658d671df963a2 100644
--- a/source/libvpx/tools_common.h
+++ b/source/libvpx/tools_common.h
@@ -16,6 +16,7 @@
 #include "vpx/vpx_codec.h"
 #include "vpx/vpx_image.h"
 #include "vpx/vpx_integer.h"
+#include "vpx_ports/msvc.h"
 
 #if CONFIG_ENCODERS
 #include "./y4minput.h"
@@ -34,7 +35,6 @@
 #if CONFIG_OS_SUPPORT
 #if defined(_MSC_VER)
 #include <io.h>  /* NOLINT */
-#define snprintf _snprintf
 #define isatty   _isatty
 #define fileno   _fileno
 #else
@@ -119,7 +119,7 @@ void warn(const char *fmt, ...);
 void die_codec(vpx_codec_ctx_t *ctx, const char *s) VPX_NO_RETURN;
 
 /* The tool including this file must define usage_exit() */
-void usage_exit() VPX_NO_RETURN;
+void usage_exit(void) VPX_NO_RETURN;
 
 #undef VPX_NO_RETURN
 
@@ -131,11 +131,11 @@ typedef struct VpxInterface {
   vpx_codec_iface_t *(*const codec_interface)();
 } VpxInterface;
 
-int get_vpx_encoder_count();
+int get_vpx_encoder_count(void);
 const VpxInterface *get_vpx_encoder_by_index(int i);
 const VpxInterface *get_vpx_encoder_by_name(const char *name);
 
-int get_vpx_decoder_count();
+int get_vpx_decoder_count(void);
 const VpxInterface *get_vpx_decoder_by_index(int i);
 const VpxInterface *get_vpx_decoder_by_name(const char *name);
 const VpxInterface *get_vpx_decoder_by_fourcc(uint32_t fourcc);