Scanning: Enable browsertest closure compilation

Bug: 1059779
Test: autoninja -C ${OUT} chrome/test/data/webui:closure_compile
Change-Id: I8b6ea9a5290e7d203344fbd42041332dc4a6fc0b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2514594
Commit-Queue: Joon Ahn <joonbug@chromium.org>
Reviewed-by: dpapad <dpapad@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824121}

chrome/test/data/webui/BUILD.gn

@@ -490,8 +490,7 @@ group("closure_compile") {
   ]
   if (is_chromeos) {
     deps += [
-      "chromeos/account_manager:closure_compile",
-      "chromeos/gaia_action_buttons:closure_compile",
+      "chromeos:closure_compile",
       "nearby_share:closure_compile",
       "nearby_share/shared:closure_compile",
     ]

chrome/test/data/webui/chromeos/BUILD.gn

@@ -16,3 +16,15 @@ js_library("fake_network_config_mojom.m") {
   }
   extra_deps = [ ":modulize" ]
 }
+
+group("closure_compile") {
+  public_deps = []
+
+  if (is_chromeos) {
+    public_deps += [
+      "account_manager:closure_compile",
+      "gaia_action_buttons:closure_compile",
+      "scanning:closure_compile",
+    ]
+  }
+}