Moves QuicTag typedefs, and QuicTag utility methods to quic_tag.{h,cc}. No behavior change.

net/quic/core/quic_utils.cc

Index: net/quic/core/quic_utils.cc
diff --git a/net/quic/core/quic_utils.cc b/net/quic/core/quic_utils.cc
index e75f32d5f340c53e9a0882ece15a80863299a0d4..aa6dd63fd22cfdcd96e82ea78f0b1f36d8f71d27 100644
--- a/net/quic/core/quic_utils.cc
+++ b/net/quic/core/quic_utils.cc
@@ -124,31 +124,6 @@ uint128 QuicUtils::FNV1a_128_Hash_Two(const char* data1,
 }
 
 // static
-bool QuicUtils::FindMutualTag(const QuicTagVector& our_tags_vector,
-                              const QuicTag* their_tags,
-                              size_t num_their_tags,
-                              QuicTag* out_result,
-                              size_t* out_index) {
-  if (our_tags_vector.empty()) {
-    return false;
-  }
-  const size_t num_our_tags = our_tags_vector.size();
-  for (size_t i = 0; i < num_our_tags; i++) {
-    for (size_t j = 0; j < num_their_tags; j++) {
-      if (our_tags_vector[i] == their_tags[j]) {
-        *out_result = our_tags_vector[i];
-        if (out_index != nullptr) {
-          *out_index = j;
-        }
-        return true;
-      }
-    }
-  }
-
-  return false;
-}
-
-// static
 void QuicUtils::SerializeUint128Short(uint128 v, uint8_t* out) {
   const uint64_t lo = Uint128Low64(v);
   const uint64_t hi = Uint128High64(v);
@@ -320,31 +295,6 @@ const char* QuicUtils::TransmissionTypeToString(TransmissionType type) {
 }
 
 // static
-string QuicUtils::TagToString(QuicTag tag) {
-  char chars[sizeof tag];
-  bool ascii = true;
-  const QuicTag orig_tag = tag;
-
-  for (size_t i = 0; i < arraysize(chars); i++) {
-    chars[i] = static_cast<char>(tag);
-    if ((chars[i] == 0 || chars[i] == '\xff') && i == arraysize(chars) - 1) {
-      chars[i] = ' ';
-    }
-    if (!isprint(static_cast<unsigned char>(chars[i]))) {
-      ascii = false;
-      break;
-    }
-    tag >>= 8;
-  }
-
-  if (ascii) {
-    return string(chars, sizeof(chars));
-  }
-
-  return base::UintToString(orig_tag);
-}
-
-// static
 QuicTagVector QuicUtils::ParseQuicConnectionOptions(
     const std::string& connection_options) {
   QuicTagVector options;