Fix no-compile tests in base.

base/safe_numerics_unittest.nc

 // Copyright (c) 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 <float.h>
+
 #include "base/safe_numerics.h"
 
-namespace base {
-namespace internal {
+using base::internal::IsValidNumericCast;
 
-void NoFloatingPoint {
+#if defined(NCTEST_NO_FLOATING_POINT_1)  // [r"size of array is negative"]
+
+void WontCompile() {
   IsValidNumericCast<float>(0.0);
+}
+
+#elif defined(NCTEST_NO_FLOATING_POINT_2)  // [r"size of array is negative"]
+
+void WontCompile() {
   IsValidNumericCast<double>(0.0f);
+}
+
+#elif defined(NCTEST_NO_FLOATING_POINT_3)  // [r"size of array is negative"]
+
+void WontCompile() {
   IsValidNumericCast<int>(DBL_MAX);
 }
 
-}  // namespace internal
-}  // namespace base
+#endif