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 728f475c5bcaa7bb909f3ac1336ac45d55195447..02961c45a179931a45d42daf4a7a391e9a6ac057 100644
--- a/blimp/engine/BUILD.gn
+++ b/blimp/engine/BUILD.gn
@@ -60,7 +60,6 @@ source_set("app") {
     ":app_net",
     ":app_permissions",
     ":app_settings",
-    ":app_switches",
     ":app_ui",
     ":blob_channel",
     ":common",
@@ -89,8 +88,8 @@ source_set("app_config") {
     "app/blimp_engine_config.h",
   ]
   deps = [
-    ":app_switches",
     "//base",
+    "//blimp/common",
     "//cc",
     "//content/public/common",
     "//ui/gl",
@@ -342,10 +341,11 @@ source_set("app_unit_tests") {
     ":app",
     ":app_config",
     ":app_settings",
-    ":app_switches",
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
+    "//blimp/common",
+    "//blimp/common:test_support",
     "//blimp/engine:app_ui",
     "//testing/gmock",
     "//testing/gtest",