fix checked_numeric_cast comments

base/safe_numerics.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_SAFE_NUMERICS_H_
 #define BASE_SAFE_NUMERICS_H_
 
 #include <limits>
 
 #include "base/logging.h"
@@ skipping 102 matching lines @@
       (sizeof(Dest) > sizeof(Source)),
       DestLimits::is_signed,
       SourceLimits::is_signed>::Test(
           source,
           DestLimits::min(),
           DestLimits::max());
 }
 
 }  // namespace internal
 
-// numeric_cast<> is analogous to static_cast<> for numeric types, except that
-// it CHECKs that the specified numeric conversion will not overflow or
-// underflow. Floating point arguments are not currently allowed (this is
-// COMPILE_ASSERTd), though this could be supported if necessary.
+// checked_numeric_cast<> is analogous to static_cast<> for numeric types,
+// except that it CHECKs that the specified numeric conversion will not
+// overflow or underflow. Floating point arguments are not currently allowed
+// (this is COMPILE_ASSERTd), though this could be supported if necessary.
 template <class Dest, class Source>
 inline Dest checked_numeric_cast(Source source) {
   CHECK(internal::IsValidNumericCast<Dest>(source));
   return static_cast<Dest>(source);
 }
 
 }  // namespace base
 
 #endif  // BASE_SAFE_NUMERICS_H_