Use chrome manifest with embedded shell

chrome/app/mash/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.
 
 import("//mojo/public/mojo_application_manifest.gni")
 
 source_set("mash") {
   sources = [
     "mash_runner.cc",
     "mash_runner.h",
@@ skipping 11 matching lines @@
     "//mojo/shell",
     "//mojo/shell/background:lib",
     "//mojo/shell/public/cpp",
     "//mojo/shell/public/interfaces",
     "//mojo/shell/runner/common",
     "//mojo/shell/runner/host:child_process_base",
     "//mojo/shell/runner/host:lib",
     "//url",
   ]
   data_deps = [
-    ":chrome_manifest",
     ":manifest",
   ]
 
   if (is_linux && !is_android) {
     deps += [ "//components/font_service:lib" ]
   }
 }
 
 mojo_application_manifest("manifest") {
   type = "exe"
@@ skipping 14 matching lines @@
     "mus",
     "quick_launch",
     "resource_provider",
   ]
 
   if (is_linux && !is_android) {
     deps += [ "//components/font_service:manifest" ]
     packaged_applications += [ "font_service" ]
   }
 }
-
-mojo_application_manifest("chrome_manifest") {
-  type = "exe"
-  application_name = "chrome"
-  source = "chrome_manifest.json"
-}