Add CC to the GN build, work on GPU more

third_party/libXNVCtrl/BUILD.gn

Index: third_party/libXNVCtrl/BUILD.gn
diff --git a/mojo/public/js/bindings/BUILD.gn b/third_party/libXNVCtrl/BUILD.gn
similarity index 65%
copy from mojo/public/js/bindings/BUILD.gn
copy to third_party/libXNVCtrl/BUILD.gn
index 0f305e924ec52d3d1b6923ecc012b55a1ac69eac..ef95a0dd37be5e57be2713595d8933fd19164daf 100644
--- a/mojo/public/js/bindings/BUILD.gn
+++ b/third_party/libXNVCtrl/BUILD.gn
@@ -2,9 +2,11 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("bindings") {
+source_set("libXNVCtrl") {
   sources = [
-    "constants.cc",
-    "constants.h",
+    "NVCtrl.c",
+    "NVCtrl.h",
+    "NVCtrlLib.h",
+    "nv_control.h",
   ]
 }