Revert 82405 - Support more than 9 arguments for ReplaceStringPlaceholders()- support more than 9...

base/string_util.cc

Index: base/string_util.cc
===================================================================
--- base/string_util.cc	(revision 82422)
+++ base/string_util.cc	(working copy)
@@ -831,6 +831,7 @@
 OutStringType DoReplaceStringPlaceholders(const FormatStringType& format_string,
     const std::vector<OutStringType>& subst, std::vector<size_t>* offsets) {
   size_t substitutions = subst.size();
+  DCHECK(substitutions < 10);
 
   size_t sub_length = 0;
   for (typename std::vector<OutStringType>::const_iterator iter = subst.begin();
@@ -855,14 +856,7 @@
           }
           --i;
         } else {
-          uintptr_t index = 0;
-          while ('0' <= *i && '9' >= *i) {
-            index *= 10;
-            index += *i - '0';
-            ++i;
-          }
-          --i;
-          index -= 1;
+          uintptr_t index = *i - '1';
           if (offsets) {
             ReplacementOffset r_offset(index,
                 static_cast<int>(formatted.size()));