Rename USE_NSS to USE_NSS_CERTS.

components/nacl/loader/nacl_helper_linux.cc

Index: components/nacl/loader/nacl_helper_linux.cc
diff --git a/components/nacl/loader/nacl_helper_linux.cc b/components/nacl/loader/nacl_helper_linux.cc
index 7076044e31d9a26d80a09d5c75eed79cb6dc0582..6670eb248ee47cec6c2ddc7b2cd6a95f0e12385b 100644
--- a/components/nacl/loader/nacl_helper_linux.cc
+++ b/components/nacl/loader/nacl_helper_linux.cc
@@ -438,7 +438,7 @@ int main(int argc, char* argv[]) {
   // NSS is only needed for SFI NaCl.
   // Allows NSS to fopen() /dev/urandom.
   sandbox::InitLibcUrandomOverrides();
-#if defined(USE_NSS)
+#if defined(USE_NSS_CERTS)
   // Configure NSS for use inside the NaCl process.
   // The fork check has not caused problems for NaCl, but this appears to be
   // best practice (see other places LoadNSSLibraries is called.)
@@ -450,7 +450,7 @@ int main(int argc, char* argv[]) {
   // Load shared libraries before sandbox is raised.
   // NSS is needed to perform hashing for validation caching.
   crypto::LoadNSSLibraries();
-#endif  // defined(USE_NSS)
+#endif  // defined(USE_NSS_CERTS)
 #endif  // defined(OS_NACL_NONSFI)
   const NaClLoaderSystemInfo system_info = {
 #if !defined(OS_NACL_NONSFI)