gn format //third_party

Uses gn binary at head.

No intended functionality change.

R=brettw@chromium.org
TBR=scherkus@chromium.org
BUG=348474

Review URL: https://codereview.chromium.org/779473002

Cr-Original-Commit-Position: refs/heads/master@{#306567}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 1c240d2719e764ed0108aa59ba35a6d99c00491a
diff --git a/BUILD.gn b/BUILD.gn
index 55189e7..cf40895 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -29,11 +29,7 @@
 
   public_configs = [ ":jsoncpp_config" ]
 
-  defines = [
-    "JSON_USE_EXCEPTION=0",
-  ]
+  defines = [ "JSON_USE_EXCEPTION=0" ]
 
-  include_dirs = [
-    "source/src/lib_json",
-  ]
+  include_dirs = [ "source/src/lib_json" ]
 }