mandoline: Add back/forward support and UI.

mandoline/ui/desktop_ui/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/config/ui.gni")
 import("//mojo/public/mojo_application.gni")
 import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
 
 mojo_native_application("desktop_ui") {
   sources = [
     "main.cc",
   ]
 
   deps = [
     ":lib",
     "//mandoline/ui/common/resources",
     "//mojo/application/public/cpp",
   ]
 
   resources = [ "$root_out_dir/mandoline_ui.pak" ]
 }
 
 source_set("lib") {
   sources = [
     "browser_commands.h",
     "browser_manager.cc",
     "browser_manager.h",
     "browser_window.cc",
     "browser_window.h",
+    "toolbar_view.cc",
+    "toolbar_view.h",
   ]
 
   deps = [
     "public/interfaces",
     "//base",
     "//components/web_view/public/cpp",
     "//components/web_view/public/interfaces",
     "//mandoline/ui/aura",
     "//mojo/application/public/cpp:sources",
     "//mojo/common:common_base",
@@ skipping 19 matching lines @@
 
   deps = [
     "//base",
     "//base/test:test_config",
     "//components/view_manager/public/cpp",
     "//mandoline/ui/desktop_ui:lib",
     "//mojo/application/public/cpp:sources",
     "//mojo/application/public/cpp:test_support",
   ]
 }