Update from https://crrev.com/306655

build/util/BUILD.gn

Index: build/util/BUILD.gn
diff --git a/build/util/BUILD.gn b/build/util/BUILD.gn
index 320c5ee2d38257237fee1364700a0c03d6d9f065..3fc775797ac66e9d06f9ab7416cf6a656dbcf41c 100644
--- a/build/util/BUILD.gn
+++ b/build/util/BUILD.gn
@@ -6,15 +6,20 @@ action("webkit_version") {
   script = "version.py"
 
   lastchange_file = "LASTCHANGE.blink"
+
   # TODO(brettw) move from content to this directory.
   template_file = "//content/webkit_version.h.in"
-  inputs = [ lastchange_file, template_file ]
+  inputs = [
+    lastchange_file,
+    template_file,
+  ]
 
   output_file = "$root_gen_dir/webkit_version.h"
   outputs = [ output_file ]
 
   args = [
-    "-f", rebase_path(lastchange_file, root_build_dir),
+    "-f",
+    rebase_path(lastchange_file, root_build_dir),
     rebase_path(template_file, root_build_dir),
     rebase_path(output_file, root_build_dir),
   ]