Update from https://crrev.com/306655

net/quic/crypto/cert_compressor.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/crypto/cert_compressor.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/quic/quic_utils.h"
 #include "third_party/zlib/zlib.h"
@@ skipping 242 matching lines @@
   entries_size++;  // for end marker
 
   return entries_size;
 }
 
 // SerializeCertEntries serialises |entries| to |out|, which must have enough
 // space to contain them.
 void SerializeCertEntries(uint8* out, const vector<CertEntry>& entries) {
   for (vector<CertEntry>::const_iterator i = entries.begin();
        i != entries.end(); ++i) {
-    *out++ = i->type;
+    *out++ = static_cast<uint8>(i->type);
     switch (i->type) {
       case CertEntry::COMPRESSED:
         break;
       case CertEntry::CACHED:
         memcpy(out, &i->hash, sizeof(i->hash));
         out += sizeof(uint64);
         break;
       case CertEntry::COMMON:
         // Assumes a little-endian machine.
         memcpy(out, &i->set_hash, sizeof(i->set_hash));
@@ skipping 363 matching lines @@
   }
 
   if (!uncompressed.empty()) {
     return false;
   }
 
   return true;
 }
 
 }  // namespace net