Use suffixed {uint,int}{8,16,32,64}_t types.

webrtc/base/md5digest.cc

Index: webrtc/base/md5digest.cc
diff --git a/webrtc/base/md5digest.cc b/webrtc/base/md5digest.cc
index 1d014c3588f2b03b60d1b852aac7703350f08b62..74f6bede29df2d9ba3a70cce94e6f6a97b2c5087 100644
--- a/webrtc/base/md5digest.cc
+++ b/webrtc/base/md5digest.cc
@@ -17,14 +17,14 @@ size_t Md5Digest::Size() const {
 }
 
 void Md5Digest::Update(const void* buf, size_t len) {
-  MD5Update(&ctx_, static_cast<const uint8*>(buf), len);
+  MD5Update(&ctx_, static_cast<const uint8_t*>(buf), len);
 }
 
 size_t Md5Digest::Finish(void* buf, size_t len) {
   if (len < kSize) {
     return 0;
   }
-  MD5Final(&ctx_, static_cast<uint8*>(buf));
+  MD5Final(&ctx_, static_cast<uint8_t*>(buf));
   MD5Init(&ctx_);  // Reset for next use.
   return kSize;
 }