Restructure public side of view_manager service.

mojo/views/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")
 
 assert(use_aura)
 
 # GYP version: mojo/mojo.gyp:mojo_views_support
 static_library("views") {
   sources = [
     "input_method_mojo_linux.cc",
     "input_method_mojo_linux.h",
     "native_widget_view_manager.cc",
     "native_widget_view_manager.h",
     "views_init.cc",
     "views_init.h",
   ]
 
   public_deps = [
     "//mojo/aura",
     "//mojo/converters/geometry",
-    "//mojo/services/public/cpp/view_manager",
+    "//mojo/services/view_manager/public/cpp",
     "//skia",
     "//ui/base",
     "//ui/views",
   ]
 
   deps = [
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//skia",
     "//third_party/icu",
     "//ui/aura",
     "//ui/base",
     "//ui/gfx",
     "//ui/wm",
   ]
 }