Revert 114083 - Convert app_launch_index and page_index from int to StringOrdinal.

chrome/common/string_ordinal.h

Index: chrome/common/string_ordinal.h
===================================================================
--- chrome/common/string_ordinal.h	(revision 114254)
+++ chrome/common/string_ordinal.h	(working copy)
@@ -29,11 +29,6 @@
   // Creates an invalid StringOrdinal.
   StringOrdinal();
 
-  // Creates a valid initial StringOrdinal, this is called to create the first
-  // element of StringOrdinal list (i.e. before we have any other values we can
-  // generate from).
-  static StringOrdinal CreateInitialOrdinal();
-
   bool IsValid() const;
 
   // All remaining functions can only be called if IsValid() holds.
@@ -44,9 +39,6 @@
   // Returns true iff |*this| < |other|.
   bool LessThan(const StringOrdinal& other) const;
 
-  // Returns true iff |*this| > |other|.
-  bool GreaterThan(const StringOrdinal& other) const;
-
   // Returns true iff |*this| == |other| (i.e. |*this| < |other| and
   // |other| < |*this| are both false).
   bool Equal(const StringOrdinal& other) const;
@@ -77,10 +69,4 @@
   bool is_valid_;
 };
 
-// A helper class that can be used by STL containers that require sorting.
-class StringOrdinalLessThan {
- public:
-  bool operator() (const StringOrdinal& lhs, const StringOrdinal& rhs) const;
-};
-
 #endif  // CHROME_COMMON_STRING_ORDINAL_H_