update_engine: run gn format BUILD.gn and *.gni

Run gn format **/BUILD.gn and **/*.gni to apply new format of uprev'd gn
of version "1733 (82d673ac)".

BUG=chromium:1072321
TEST=cros tryjob -g 2156088 -g 2126033 hatch-full-tryjob

Cq-Depend: chromium:2126033
Change-Id: Ib42a47d6e1d8c564e1f08e1caa16fbb7d0620030
Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/system/update_engine/+/2156088
Tested-by: Clark Chung <ckclark@chromium.org>
Commit-Queue: Clark Chung <ckclark@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/client-headers/BUILD.gn b/client-headers/BUILD.gn
index 88f8bb9..8c1a17e 100644
--- a/client-headers/BUILD.gn
+++ b/client-headers/BUILD.gn
@@ -17,17 +17,13 @@
 import("//common-mk/generate-dbus-proxies.gni")
 
 group("all") {
-  deps = [
-    ":libupdate_engine-client-headers",
-  ]
+  deps = [ ":libupdate_engine-client-headers" ]
 }
 
 # update_engine client library generated headers. Used by other daemons and
 # by the update_engine_client console program to interact with update_engine.
 generate_dbus_proxies("libupdate_engine-client-headers") {
-  sources = [
-    "../dbus_bindings/org.chromium.UpdateEngineInterface.dbus-xml",
-  ]
+  sources = [ "../dbus_bindings/org.chromium.UpdateEngineInterface.dbus-xml" ]
   dbus_service_config = "../dbus_bindings/dbus-service-config.json"
   mock_output_file = "include/update_engine/dbus-proxy-mocks.h"
   proxy_output_file = "include/update_engine/dbus-proxies.h"