Update SplitString calls in chrome.

chrome/browser/supervised_user/supervised_user_whitelist_service.cc

 // Copyright 2014 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 "chrome/browser/supervised_user/supervised_user_whitelist_service.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 53 matching lines @@
 
   installer_->Subscribe(
       base::Bind(&SupervisedUserWhitelistService::OnWhitelistReady,
                  weak_ptr_factory_.GetWeakPtr()));
 
   // Register whitelists specified on the command line.
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
   std::string command_line_whitelists = command_line->GetSwitchValueASCII(
       switches::kInstallSupervisedUserWhitelists);
-  std::vector<std::string> split_whitelists;
-  base::SplitString(command_line_whitelists, ',', &split_whitelists);
-  for (const std::string& whitelist : split_whitelists) {
+  for (const base::StringPiece& whitelist : base::SplitStringPiece(
+           command_line_whitelists, ",",
+           base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
     std::string id;
     std::string name;
     size_t separator = whitelist.find(':');
-    if (separator != std::string::npos) {
-      id = whitelist.substr(0, separator);
-      name = whitelist.substr(separator + 1);
+    if (separator != base::StringPiece::npos) {
+      whitelist.substr(0, separator).CopyToString(&id);
+      whitelist.substr(separator + 1).CopyToString(&name);
     } else {
-      id = whitelist;
+      whitelist.CopyToString(&id);
     }
 
     // Skip whitelists that were already registered.
     if (registered_whitelists_.count(id) > 0u)
       continue;
 
     bool new_installation = true;
     RegisterWhitelist(id, name, new_installation);
   }
 }
@@ skipping 246 matching lines @@
   UMA_HISTOGRAM_TIMES("ManagedUsers.Whitelist.TotalLoadDuration",
                       base::TimeTicks::Now() - start_time);
 
   // If the whitelist has been unregistered in the mean time, ignore it.
   if (registered_whitelists_.count(id) == 0u)
     return;
 
   loaded_whitelists_[id] = whitelist;
   NotifyWhitelistsChanged();
 }