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..9b8387cce1cf4f82e967fe3a62b116237628f1ad 100644
--- a/blimp/engine/BUILD.gn
+++ b/blimp/engine/BUILD.gn
@@ -91,6 +91,7 @@ source_set("app_config") {
   deps = [
     ":app_switches",
     "//base",
+    "//blimp/common",
     "//cc",
     "//content/public/common",
     "//ui/gl",
@@ -346,6 +347,7 @@ source_set("app_unit_tests") {
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
+    "//blimp/common:test_support",
     "//blimp/engine:app_ui",
     "//testing/gmock",
     "//testing/gtest",