Fix error in CheckedNumeric usage comment

base/numerics/safe_math.h

Index: base/numerics/safe_math.h
diff --git a/base/numerics/safe_math.h b/base/numerics/safe_math.h
index e824ba6e299aae42800b8200e9dcf08a9397c822..d169690a827848540eb1c3d1bd560487b958c3ff 100644
--- a/base/numerics/safe_math.h
+++ b/base/numerics/safe_math.h
@@ -38,9 +38,8 @@ namespace internal {
 //     CheckedNumeric<int> checked_int = untrusted_input_value;
 //     int x = checked_int.ValueOrDefault(0) | kFlagValues;
 // Comparison:
-//   CheckedNumeric<size_t> checked_size;
-//   CheckedNumeric<int> checked_size = untrusted_input_value;
-//   checked_size = checked_size + HEADER LENGTH;
+//   CheckedNumeric<size_t> checked_size = untrusted_input_value;
+//   checked_size += HEADER LENGTH;
 //   if (checked_size.IsValid() && checked_size.ValueOrDie() < buffer_size)
 //     Do stuff...
 template <typename T>