Allows client to access auth token from command line specified file.

blimp/engine/BUILD.gn

Index: blimp/engine/BUILD.gn
diff --git a/blimp/engine/BUILD.gn b/blimp/engine/BUILD.gn
index fb1fe5a7f8c849a779a499d6537cbec7323ef94d..797de101ed528d0e4ad0452b8af49e24179de09c 100644
--- a/blimp/engine/BUILD.gn
+++ b/blimp/engine/BUILD.gn
@@ -64,7 +64,6 @@ source_set("app") {
     ":app_net",
     ":app_permissions",
     ":app_settings",
-    ":app_switches",
     ":app_ui",
     ":blob_channel",
     ":common",
@@ -93,8 +92,8 @@ source_set("app_config") {
     "app/blimp_engine_config.h",
   ]
   deps = [
-    ":app_switches",
     "//base",
+    "//blimp/common",
     "//cc",
     "//content/public/common",
     "//ui/gl",
@@ -378,10 +377,11 @@ source_set("app_unit_tests") {
     ":app_metrics",
     ":app_net",
     ":app_settings",
-    ":app_switches",
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
+    "//blimp/common",
+    "//blimp/common:test_support",
     "//blimp/engine:app_ui",
     "//components/metrics:metrics",
     "//components/pref_registry:pref_registry",