Standardize StringToInt{,64} interface.

chrome_frame/test/test_server.cc

Index: chrome_frame/test/test_server.cc
diff --git a/chrome_frame/test/test_server.cc b/chrome_frame/test/test_server.cc
index f2d7de3892f89a5cec79f252f8626aa52e109b23..cddcd2cceec847b8d64605301392ddf4eac29143 100644
--- a/chrome_frame/test/test_server.cc
+++ b/chrome_frame/test/test_server.cc
@@ -9,6 +9,7 @@
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
+#include "base/string_piece.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
@@ -49,8 +50,8 @@ void Request::ParseHeaders(const std::string& headers) {
   while (it.GetNext()) {
     if (LowerCaseEqualsASCII(it.name(), "content-length")) {
       int int_content_length;
-      base::StringToInt(it.values_begin(),
-                        it.values_end(),
+      base::StringToInt(base::StringPiece(it.values_begin(),
+                                          it.values_end()),
                         &int_content_length);
       content_length_ = int_content_length;
       break;