Upstream Chrome on iOS source code [11/11].

ios/chrome/browser/ui/no_tabs/BUILD.gn

+# Copyright 2016 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.
+
+source_set("no_tabs") {
+  sources = [
+    "no_tabs_controller.h",
+    "no_tabs_controller.mm",
+    "no_tabs_controller_testing.h",
+    "no_tabs_toolbar_controller.h",
+    "no_tabs_toolbar_controller.mm",
+  ]
+  deps = [
+    "//base",
+    "//ios/chrome/browser/ui",
+    "//ios/chrome/browser/ui/commands",
+    "//ios/chrome/browser/ui/toolbar",
+    "//ios/chrome/browser/ui/tools_menu",
+    "//ui/gfx",
+  ]
+  libs = [ "UIKit.framework" ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "no_tabs_controller_unittest.mm",
+  ]
+  deps = [
+    ":no_tabs",
+    "//base",
+    "//testing/gtest",
+  ]
+}