New new versions of Starts/EndsWith and SplitString in net

net/dns/host_resolver.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/dns/host_resolver.h"
 
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
@@ skipping 29 matching lines @@
   // Parallelism is determined by the field trial.
   std::string group = base::FieldTrialList::FindFullName(
       "HostResolverDispatch");
 
   if (group.empty())
     return limits;
 
   // The format of the group name is a list of non-negative integers separated
   // by ':'. Each of the elements in the list corresponds to an element in
   // |reserved_slots|, except the last one which is the |total_jobs|.
-
-  std::vector<std::string> group_parts;
-  base::SplitString(group, ':', &group_parts);
+  std::vector<base::StringPiece> group_parts = base::SplitStringPiece(
+      group, ":", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
   if (group_parts.size() != NUM_PRIORITIES + 1) {
     NOTREACHED();
     return limits;
   }
 
   std::vector<size_t> parsed(group_parts.size());
   size_t total_reserved_slots = 0;
 
   for (size_t i = 0; i < group_parts.size(); ++i) {
     if (!base::StringToSizeT(group_parts[i], &parsed[i])) {
@@ skipping 57 matching lines @@
 
 // static
 scoped_ptr<HostResolver> HostResolver::CreateDefaultResolver(NetLog* net_log) {
   return scoped_ptr<HostResolver>(new HostResolverImpl(Options(), net_log));
 }
 
 HostResolver::HostResolver() {
 }
 
 }  // namespace net