New new versions of Starts/EndsWith and SplitString in net

net/quic/quic_utils.cc

 // Copyright (c) 2012 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/quic_utils.h"
 
 #include <ctype.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 274 matching lines @@
     return string(chars, sizeof(chars));
   }
 
   return base::UintToString(orig_tag);
 }
 
 // static
 QuicTagVector QuicUtils::ParseQuicConnectionOptions(
     const std::string& connection_options) {
   QuicTagVector options;
-  std::vector<std::string> tokens;
-  base::SplitString(connection_options, ',', &tokens);
   // Tokens are expected to be no more than 4 characters long, but we
   // handle overflow gracefully.
-  for (const std::string& token : tokens) {
+  for (const base::StringPiece& token :
+       base::SplitStringPiece(connection_options, ",", base::TRIM_WHITESPACE,
+                              base::SPLIT_WANT_ALL)) {
     uint32 option = 0;
     for (char token_char : base::Reversed(token)) {
       option <<= 8;
       option |= static_cast<unsigned char>(token_char);
     }
     options.push_back(option);
   }
   return options;
 }
 
@@ skipping 28 matching lines @@
   }
   return s;
 }
 
 // static
 QuicPriority QuicUtils::HighestPriority() {
   return QuicWriteBlockedList::kHighestPriority;
 }
 
 }  // namespace net