fix checked_numeric_cast comments

base/safe_numerics_unittest.cc

 // 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.
 
 #include <gtest/gtest.h>
 
 #include <sstream>
 #include <vector>
 
 #include "base/safe_numerics.h"
@@ skipping 112 matching lines @@
   EXPECT_TRUE(IsValidNumericCast<unsigned int>(size_t_large));
   EXPECT_TRUE(IsValidNumericCast<long long>(size_t_large));
   EXPECT_TRUE(IsValidNumericCast<unsigned long long>(size_t_large));
 
   // Various edge cases.
   EXPECT_TRUE(IsValidNumericCast<int>(static_cast<short>(SHRT_MIN)));
   EXPECT_FALSE(
       IsValidNumericCast<unsigned short>(static_cast<short>(SHRT_MIN)));
   EXPECT_FALSE(IsValidNumericCast<unsigned short>(SHRT_MIN));
 
-  // Confirm that numeric_cast<> actually compiles.
+  // Confirm that checked_numeric_cast<> actually compiles.
   std::vector<int> v;
   unsigned int checked_size =
       base::checked_numeric_cast<unsigned int>(v.size());
   EXPECT_EQ(0u, checked_size);
 
 #ifdef RUN_EXHAUSTIVE_TEST
   ExhaustiveCheckFrom<short>();
   ExhaustiveCheckFrom<unsigned short>();
   ExhaustiveCheckFrom<int>();
   ExhaustiveCheckFrom<unsigned int>();
   ExhaustiveCheckFrom<long long>();
   ExhaustiveCheckFrom<unsigned long long>();
   ExhaustiveCheckFrom<size_t>();
 #endif
 }
 
 }  // namespace internal
 }  // namespace base