[ios clean] Adds ToolsMenu to Showcase.

ios/clean/chrome/browser/ui/tools/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("tools") {
   sources = [
     "tools_coordinator.h",
     "tools_coordinator.mm",
     "tools_mediator.h",
     "tools_mediator.mm",
     "tools_mediator_private.h",
-    "tools_menu_model.h",
-    "tools_menu_model.mm",
   ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 
   deps = [
+    ":tools_model",
     ":tools_ui",
     "//base",
-    "//components/strings",
-    "//ios/chrome/app/strings",
-    "//ios/chrome/browser/ui/tools_menu",
     "//ios/clean/chrome/browser/ui/animators",
     "//ios/clean/chrome/browser/ui/commands",
     "//ios/clean/chrome/browser/ui/presenters",
     "//ios/shared/chrome/browser/ui/browser_list",
     "//ios/shared/chrome/browser/ui/coordinators",
     "//ios/shared/chrome/browser/ui/tools_menu",
     "//ios/web",
     "//ui/base",
   ]
 }
 
+source_set("tools_model") {

[lpromero, 2017/06/20 08:50:23]

Why not just fold it into tools_ui? It's called model, but it's considered part
of the UI layer in your case.

+  sources = [
+    "tools_menu_model.h",
+    "tools_menu_model.mm",
+  ]
+
+  configs += [ "//build/config/compiler:enable_arc" ]
+
+  deps = [
+    "//components/strings",
+    "//ios/chrome/app/strings",
+    "//ios/chrome/browser/ui/tools_menu",
+    "//ios/clean/chrome/browser/ui/commands",
+  ]
+}
+
 source_set("tools_ui") {
   sources = [
     "menu_overflow_controls_stackview.h",
     "menu_overflow_controls_stackview.mm",
     "menu_view_controller.h",
     "menu_view_controller.mm",
-    "tools_actions.h",
     "tools_consumer.h",
     "tools_menu_item.h",
     "tools_menu_item.mm",
   ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 
   deps = [
     "//base",
     "//base:i18n",
@@ skipping 22 matching lines @@
     "//base/test:test_support",
     "//ios/chrome/test/base",
     "//ios/shared/chrome/browser/ui/toolbar:test_support",
     "//ios/shared/chrome/browser/ui/tools_menu",
     "//ios/web",
     "//ios/web/public/test/fakes",
     "//testing/gtest",
     "//third_party/ocmock",
   ]
 }