Standardize StringToInt{,64} interface.

chrome_frame/utils.cc

Index: chrome_frame/utils.cc
diff --git a/chrome_frame/utils.cc b/chrome_frame/utils.cc
index 90031095195869fe61dbe92746d004327603a4be..8610f83d1c7764c558068a7aa0d2e3c3635c9ee4 100644
--- a/chrome_frame/utils.cc
+++ b/chrome_frame/utils.cc
@@ -16,6 +16,7 @@
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/string_number_conversions.h"
+#include "base/string_piece.h"
 #include "base/string_tokenizer.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
@@ -1554,7 +1555,9 @@ int GetXUaCompatibleDirective(const std::string& directive, char delimiter) {
     }
 
     int header_ie_version = 0;
-    if (!base::StringToInt(filter_begin + 2, filter_end, &header_ie_version) ||
+    if (!base::StringToInt(base::StringPiece(filter_begin + 2,
+                                             filter_end),
+                           &header_ie_version) ||
         header_ie_version == 0) {  // ensure it's not a sequence of 0's
       continue;
     }