Add a simple browser UI (with url bar)

mandoline/ui/aura/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.
 
 # GYP version: mojo/mojo.gyp:mojo_aura_support
 source_set("aura") {
   sources = [
     "aura_init.cc",
     "aura_init.h",
+    "input_method_mandoline.cc",
+    "input_method_mandoline.h",
     "native_widget_view_manager.cc",
     "native_widget_view_manager.h",
     "screen_mojo.cc",
     "screen_mojo.h",
     "surface_binding.cc",
     "surface_binding.h",
     "surface_context_factory.cc",
     "surface_context_factory.h",
     "window_tree_host_mojo.cc",
     "window_tree_host_mojo.h",
   ]
 
-  if (is_linux) {
-    sources += [
-      "input_method_mojo_linux.cc",
-      "input_method_mojo_linux.h",
-    ]
-  }
-
   public_deps = [
     "//components/view_manager/public/cpp",
   ]
   deps = [
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//cc",
     "//cc/surfaces",
     "//components/gpu/public/interfaces",
     "//components/native_viewport/public/interfaces",
     "//components/surfaces/public/interfaces",
     "//components/view_manager/public/cpp",
     "//skia",
     "//mojo/cc",
     "//mojo/converters/geometry",
+    "//mojo/converters/input_events",
     "//mojo/converters/surfaces",
     "//third_party/mojo/src/mojo/public/c/gles2",
     "//third_party/mojo/src/mojo/public/cpp/application",
     "//third_party/mojo/src/mojo/public/interfaces/application:application",
     "//third_party/icu",
     "//ui/aura",
     "//ui/compositor",
     "//ui/events",
     "//ui/events:events_base",
     "//ui/gl",
     "//ui/views",
   ]
-
-  data_deps = [
-    "//components/native_viewport",
-    "//components/surfaces",
-  ]
 }