Fix building NaCl in Linux component GN builds.

R=brettw@chromium.org, bbudge@chromium.org
BUG=482415

Review URL: https://codereview.chromium.org/1119613002

Cr-Original-Commit-Position: refs/heads/master@{#328882}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: fc9e836200dfd6d40034783f25a26728219276ab

config/features.gni

@@ -33,8 +33,7 @@ declare_args() {
   # the commented out logic.
   # Eventually we want this to be:
   #   enable_nacl = !is_ios && !is_android
-  enable_nacl = (is_linux && !is_chromeos && !is_component_build &&
-                 current_cpu == "x64") || is_nacl
+  enable_nacl = (is_linux && !is_chromeos && current_cpu == "x64") || is_nacl
   enable_nacl_untrusted = enable_nacl
   enable_pnacl = enable_nacl_untrusted