Revert 114929 - Standardize StringToInt{,64} interface.

chrome/test/perf/page_cycler_test.cc

Index: chrome/test/perf/page_cycler_test.cc
===================================================================
--- chrome/test/perf/page_cycler_test.cc	(revision 114929)
+++ chrome/test/perf/page_cycler_test.cc	(working copy)
@@ -9,7 +9,6 @@
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/string_number_conversions.h"
-#include "base/string_piece.h"
 #include "base/sys_string_conversions.h"
 #include "base/test/test_timeouts.h"
 #include "base/utf_string_conversions.h"
@@ -332,8 +331,8 @@
     new_pos = timings.find(',', pos);
     if (new_pos == std::string::npos)
       new_pos = timings.length();
-    if (!base::StringToInt(base::StringPiece(timings.begin() + pos,
-                                             timings.begin() + new_pos),
+    if (!base::StringToInt(timings.begin() + pos,
+                           timings.begin() + new_pos,
                            &time)) {
       LOG(ERROR) << "Invalid time reported: " << time_str;
       return true;