Remove remaining legacy SplitString calls.

tools/ipc_fuzzer/fuzzer/fuzzer_main.cc

 // Copyright 2015 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 <iostream>
 #include <set>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/strings/string_split.h"
@@ skipping 141 matching lines @@
   if (args.size() != 2) {
     usage();
     return EXIT_FAILURE;
   }
   base::FilePath::StringType input_file_name = args[0];
   base::FilePath::StringType output_file_name = args[1];
 
   bool permute = cmd->HasSwitch(kPermuteSwitch);
 
   std::string type_string_list = cmd->GetSwitchValueASCII(kTypeListSwitch);
-  std::vector<std::string> type_string_vector;
-  base::SplitString(type_string_list, ',', &type_string_vector);
+  std::vector<std::string> type_string_vector = base::SplitString(
+      type_string_list, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
   std::set<uint32> type_set;
   for (size_t i = 0; i < type_string_vector.size(); ++i) {
     type_set.insert(atoi(type_string_vector[i].c_str()));
   }
 
   FuzzerFunctionMap fuzz_function_map;
   PopulateFuzzerFunctionMap(&fuzz_function_map);
 
   MessageVector message_vector;
   if (!MessageFile::Read(base::FilePath(input_file_name), &message_vector))
@@ skipping 62 matching lines @@
   }
 
   return result;
 }
 
 }  // namespace ipc_fuzzer
 
 int main(int argc, char** argv) {
   return ipc_fuzzer::FuzzerMain(argc, argv);
 }