[NaCl SDK] Update the make_pnacl_component script to GN

native_client_sdk/src/build_tools/build_sdk.py

Index: native_client_sdk/src/build_tools/build_sdk.py
diff --git a/native_client_sdk/src/build_tools/build_sdk.py b/native_client_sdk/src/build_tools/build_sdk.py
index 93db6d54fcd4d2affdf45915952410fe82c92a34..55f29cfc676766d23429ffc16833a13b06fb7070 100755
--- a/native_client_sdk/src/build_tools/build_sdk.py
+++ b/native_client_sdk/src/build_tools/build_sdk.py
@@ -849,11 +849,8 @@ def main(args):
   if options.tar:
     BuildStepTarBundle(pepper_ver, tarfile)
 
-  # TODO(sbc): Re-enable this once we switch the pnacl component build
-  # from gyp to gn:
-  # https://bugs.chromium.org/p/chromium/issues/detail?id=646241
-  #if platform == 'linux':
-    #BuildStepBuildPNaClComponent(pepper_ver, chrome_revision)
+  if platform == 'linux':
+    BuildStepBuildPNaClComponent(pepper_ver, chrome_revision)
 
   if options.build_app_engine and platform == 'linux':
     BuildStepBuildAppEngine(pepperdir, chrome_revision)