Fail to build with unbound Info.plist substitutions instead of silently dropping them.

ui/base/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
+import("//build/util/branding.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 import("//ui/ozone/ozone.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 } else if (is_mac) {
   import("//build/config/mac/rules.gni")
 }
@@ skipping 987 matching lines @@
   }
 }
 
 if (is_mac) {
   mac_framework_bundle("ui_unittests_framework") {
     testonly = true
     deps = [
       "//ui/resources:ui_test_pak_bundle_data",
     ]
     info_plist = "test/framework-Info.plist"
+    extra_substitutions = [ "CHROMIUM_BUNDLE_ID=$chrome_mac_bundle_id" ]
     output_name = "ui_unittests Framework"
   }
 }
 
 if (is_win) {
   # This source set is used by both //chrome/browser and
   # //chrome/installer/setup.  It must have minimal dependencies for the latter
   # (e.g., no skia).
   source_set("fullscreen_win") {
     sources = [
       "fullscreen_win.cc",
       "fullscreen_win.h",
     ]
   }
 }