Update SplitString calls in chrome.

chrome/browser/metrics/thread_watcher.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 "chrome/browser/metrics/thread_watcher.h"
 
 #include <math.h>  // ceil
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 474 matching lines @@
                                      crash_on_hang_threads);
 }
 
 // static
 void ThreadWatcherList::ParseCommandLineCrashOnHangThreads(
     const std::string& crash_on_hang_thread_names,
     uint32 default_live_threads_threshold,
     uint32 default_crash_seconds,
     CrashOnHangThreadMap* crash_on_hang_threads) {
   base::StringTokenizer tokens(crash_on_hang_thread_names, ",");
-  std::vector<std::string> values;
   while (tokens.GetNext()) {
-    const std::string& token = tokens.token();
-    base::SplitString(token, ':', &values);
-    std::string thread_name = values[0];
+    std::vector<base::StringPiece> values = base::SplitStringPiece(
+        tokens.token_piece(), ":", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+    std::string thread_name = values[0].as_string();
 
     uint32 live_threads_threshold = default_live_threads_threshold;
     uint32 crash_seconds = default_crash_seconds;
     if (values.size() >= 2 &&
         (!base::StringToUint(values[1], &live_threads_threshold))) {
       continue;
     }
     if (values.size() >= 3 &&
         (!base::StringToUint(values[2], &crash_seconds))) {
       continue;
@@ skipping 420 matching lines @@
 
 #if defined(OS_WIN)
   // On Windows XP, give twice the time for shutdown.
   if (base::win::GetVersion() <= base::win::VERSION_XP)
     actual_duration *= 2;
 #endif
 
   shutdown_watchdog_ = new ShutdownWatchDogThread(actual_duration);
   shutdown_watchdog_->Arm();
 }