Replace base::str[n]casecmp with helper functions.

base/strings/string_util_win.h

Index: base/strings/string_util_win.h
diff --git a/base/strings/string_util_win.h b/base/strings/string_util_win.h
index 61eda2009d0879f37d1e8e97a9a4d7ba6662d975..4339e539b8c222e5b8b5d704a9b7fd322e666131 100644
--- a/base/strings/string_util_win.h
+++ b/base/strings/string_util_win.h
@@ -20,14 +20,6 @@ inline char* strdup(const char* str) {
   return _strdup(str);
 }
 
-inline int strcasecmp(const char* s1, const char* s2) {
-  return _stricmp(s1, s2);
-}
-
-inline int strncasecmp(const char* s1, const char* s2, size_t count) {
-  return _strnicmp(s1, s2, count);
-}
-
 inline int strncmp16(const char16* s1, const char16* s2, size_t count) {
   return ::wcsncmp(s1, s2, count);
 }