Update SplitString calls in chrome.

chrome/test/base/chrome_process_util_mac.cc

 // Copyright (c) 2011 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/test/base/chrome_process_util.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 17 matching lines @@
        ++process_iter) {
     cmdline.push_back("-p");
     cmdline.push_back(base::IntToString(*process_iter));
   }
 
   // Invoke it
   std::string ps_output;
   if (!base::GetAppOutput(base::CommandLine(cmdline), &ps_output))
     return result;  // All the pids might have exited
 
-  // Process the results
-  std::vector<std::string> ps_output_lines;
-  base::SplitString(ps_output, '\n', &ps_output_lines);
-  std::vector<std::string>::const_iterator line_iter;
-  for (line_iter = ps_output_lines.begin();
-       line_iter != ps_output_lines.end();
-       ++line_iter) {
-    std::string line(base::CollapseWhitespaceASCII(*line_iter, false));
-    std::vector<std::string> values;
-    base::SplitString(line, ' ', &values);
+  // Process the results.
+  for (const std::string& raw_line : base::SplitString(
+           ps_output, "\n", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
+    std::string line(base::CollapseWhitespaceASCII(raw_line, false));
+    std::vector<base::StringPiece> values = base::SplitStringPiece(
+        line, " ", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
     if (values.size() == 3) {
       MacChromeProcessInfo proc_info;
       int pid;
       base::StringToInt(values[0], &pid);
       proc_info.pid = pid;
       base::StringToInt(values[1], &proc_info.rsz_in_kb);
       base::StringToInt(values[2], &proc_info.vsz_in_kb);
       if (proc_info.pid && proc_info.rsz_in_kb && proc_info.vsz_in_kb)
         result.push_back(proc_info);
     }
@@ skipping 41 matching lines @@
   GetMemoryValuesHack(process_handle_, &virtual_size, &working_set_size);
   return virtual_size;
 }
 
 size_t ChromeTestProcessMetrics::GetWorkingSetSize() {
   size_t virtual_size;
   size_t working_set_size;
   GetMemoryValuesHack(process_handle_, &virtual_size, &working_set_size);
   return working_set_size;
 }