Move string tokenizer to base/strings.

net/proxy/proxy_list.cc

Index: net/proxy/proxy_list.cc
diff --git a/net/proxy/proxy_list.cc b/net/proxy/proxy_list.cc
index 2057d50b4327321eafa2e2e0dd42ac63dcbb90f0..edb98074987d5d71351defad07fedbbec37cb5fc 100644
--- a/net/proxy/proxy_list.cc
+++ b/net/proxy/proxy_list.cc
@@ -6,7 +6,7 @@
 
 #include "base/callback.h"
 #include "base/logging.h"
-#include "base/string_tokenizer.h"
+#include "base/strings/string_tokenizer.h"
 #include "base/time.h"
 #include "net/proxy/proxy_server.h"
 
@@ -23,7 +23,7 @@ ProxyList::~ProxyList() {
 
 void ProxyList::Set(const std::string& proxy_uri_list) {
   proxies_.clear();
-  StringTokenizer str_tok(proxy_uri_list, ";");
+  base::StringTokenizer str_tok(proxy_uri_list, ";");
   while (str_tok.GetNext()) {
     ProxyServer uri = ProxyServer::FromURI(
         str_tok.token_begin(), str_tok.token_end(), ProxyServer::SCHEME_HTTP);
@@ -116,7 +116,7 @@ const ProxyServer& ProxyList::Get() const {
 }
 
 void ProxyList::SetFromPacString(const std::string& pac_string) {
-  StringTokenizer entry_tok(pac_string, ";");
+  base::StringTokenizer entry_tok(pac_string, ";");
   proxies_.clear();
   while (entry_tok.GetNext()) {
     ProxyServer uri = ProxyServer::FromPacString(