Revert 114929 - Standardize StringToInt{,64} interface.

chrome/browser/safe_browsing/filter_false_positive_perftest.cc

Index: chrome/browser/safe_browsing/filter_false_positive_perftest.cc
===================================================================
--- chrome/browser/safe_browsing/filter_false_positive_perftest.cc	(revision 114929)
+++ chrome/browser/safe_browsing/filter_false_positive_perftest.cc	(working copy)
@@ -64,7 +64,6 @@
 #include "base/path_service.h"
 #include "base/rand_util.h"
 #include "base/string_number_conversions.h"
-#include "base/string_piece.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "chrome/browser/safe_browsing/bloom_filter.h"
@@ -243,8 +242,7 @@
     if (use_weights) {
       std::string::size_type pos = url.find_last_of(",");
       if (pos != std::string::npos) {
-        base::StringToInt(base::StringPiece(url.begin() + pos + 1, url.end()),
-                          &weight);
+        base::StringToInt(url.begin() + pos + 1, url.end(), &weight);
         url = url.substr(0, pos);
       }
     }