Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

components/mus/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("//testing/test.gni")
 import("//mojo/public/mojo_application.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 154 matching lines @@
     "//base/test:test_config",
     "//components/mus/public/cpp:common",
     "//components/mus/public/interfaces",
     "//components/mus/surfaces",
     "//mojo/application/public/interfaces",
     "//mojo/converters/geometry",
     "//mojo/converters/input_events",
     "//mojo/converters/transform",
     "//mojo/environment:chromium",
     "//mojo/platform_handle",
-    "//third_party/mojo/src/mojo/edk/test:run_all_unittests",
     "//third_party/mojo/src/mojo/public/cpp/bindings:bindings",
     "//ui/mojo/geometry:interfaces",
     "//ui/mojo/events:interfaces",
     "//testing/gtest",
     "//ui/gfx",
     "//ui/gfx:test_support",
     "//ui/gfx/geometry",
   ]
 
+  if (use_chrome_edk) {
+    deps += [ "//mojo/edk/test:run_all_unittests" ]
+  } else {
+    deps += [ "//third_party/mojo/src/mojo/edk/test:run_all_unittests" ]
+  }
+
   if (!is_android) {  # TODO(GYP) Enable on Android when osmesa links.
     deps += [ "//third_party/mesa:osmesa" ]
   }
 }
 
 mojo_native_application("apptests") {
   output_name = "mus_apptests"
   testonly = true
 
   sources = [
     "view_manager_client_apptest.cc",
     "view_tree_apptest.cc",
   ]
 
   deps = [
     ":test_support",
     "//base",
     "//base/test:test_config",
     "//components/mus/public/cpp",
     "//components/mus/public/cpp/tests:test_support",
     "//components/mus/public/interfaces",
     "//mojo/application/public/cpp:sources",
     "//mojo/application/public/cpp:test_support",
     "//ui/mojo/geometry:interfaces",
     "//ui/mojo/geometry:util",
   ]
 
   data_deps = [ ":mus" ]
 }