[MD History] Vulcanize as part of GN build.

chrome/browser/resources/vulcanize.gni

Index: chrome/browser/resources/vulcanize.gni
diff --git a/chrome/browser/resources/vulcanize.gni b/chrome/browser/resources/vulcanize.gni
index 87d708a810766179e8b78a3be60c3f9ffc922d2a..4631527a496f7231ccef752faedef9a2eae63bbf 100644
--- a/chrome/browser/resources/vulcanize.gni
+++ b/chrome/browser/resources/vulcanize.gni
@@ -45,12 +45,22 @@ template("vulcanize") {
       invoker.js_out_file,
       "--input",
       invoker.input,
-      "--insert_in_head",
-      invoker.insert_in_head,
       "--out_folder",
       rebase_path(target_gen_dir, root_build_dir),
       "--depfile",
       rebase_path(depfile, root_build_dir),
     ]
+
+    if (defined(invoker.excludes)) {
+      args += [ "--exclude" ]

[dpapad, 2017/02/09 19:14:04]

Nit: Would that work?

 args += [ "--exclude" ] + invoker.excludes

+      args += invoker.excludes
+    }
+
+    if (defined(invoker.insert_in_head)) {
+      args += [
+        "--insert_in_head",
+        invoker.insert_in_head,
+      ]
+    }
   }
 }