Allow generation of a chromium outdirs when enable_extensions=false

apps/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/features.gni")
 import("//build/config/ui.gni")
 import("//extensions/features/features.gni")
 
 assert(!is_android && !is_ios)
+assert(enable_extensions)
 
 static_library("apps") {
   sources = []
 
   if (enable_extensions) {

[michaelpg, 2017/06/08 22:54:41]

remove if()

[hugoh_UTC2, 2017/06/09 09:25:42]

Done.

     sources += [
       "app_lifetime_monitor.cc",
       "app_lifetime_monitor.h",
       "app_lifetime_monitor_factory.cc",
       "app_lifetime_monitor_factory.h",
       "app_restore_service.cc",
       "app_restore_service.h",
       "app_restore_service_factory.cc",
       "app_restore_service_factory.h",
       "browser_context_keyed_service_factories.cc",
@@ skipping 33 matching lines @@
   testonly = true
   sources = [
     "test/app_window_waiter.cc",
     "test/app_window_waiter.h",
   ]
 
   public_deps = [
     "//content/public/browser",
   ]
 }