New new versions of Starts/EndsWith and SplitString in net

net/dns/host_resolver_impl.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_impl.h"
 
 #if defined(OS_WIN)
 #include <Winsock2.h>
 #elif defined(OS_POSIX)
 #include <netdb.h>
@@ skipping 260 matching lines @@
 
 bool ConfigureAsyncDnsNoFallbackFieldTrial() {
   const bool kDefault = false;
 
   // Configure the AsyncDns field trial as follows:
   // groups AsyncDnsNoFallbackA and AsyncDnsNoFallbackB: return true,
   // groups AsyncDnsA and AsyncDnsB: return false,
   // groups SystemDnsA and SystemDnsB: return false,
   // otherwise (trial absent): return default.
   std::string group_name = base::FieldTrialList::FindFullName("AsyncDns");
-  if (!group_name.empty())
-    return base::StartsWithASCII(group_name, "AsyncDnsNoFallback", false);
+  if (!group_name.empty()) {
+    return base::StartsWith(group_name, "AsyncDnsNoFallback",
+                            base::CompareCase::INSENSITIVE_ASCII);
+  }
   return kDefault;
 }
 
 //-----------------------------------------------------------------------------
 
 AddressList EnsurePortOnAddressList(const AddressList& list, uint16 port) {
   if (list.empty() || list.front().port() == port)
     return list;
   return AddressList::CopyWithPort(list, port);
 }
@@ skipping 2138 matching lines @@
     dns_client_->SetConfig(dns_config);
     num_dns_failures_ = 0;
     if (dns_client_->GetConfig())
       UMA_HISTOGRAM_BOOLEAN("AsyncDNS.DnsClientEnabled", true);
   }
 
   AbortDnsTasks();
 }
 
 }  // namespace net