Add new system url request context getter to the blimp engine.

blimp/engine/BUILD.gn

 # Copyright 2015 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/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//tools/grit/repack.gni")
 import("//tools/grit/grit_rule.gni")
 
@@ skipping 42 matching lines @@
     "app/blimp_content_main_delegate.cc",
     "app/blimp_content_main_delegate.h",
     "app/blimp_content_renderer_client.cc",
     "app/blimp_content_renderer_client.h",
     "app/blimp_engine_config.cc",
     "app/blimp_engine_config.h",
     "app/blimp_network_delegate.cc",
     "app/blimp_network_delegate.h",
     "app/blimp_permission_manager.cc",
     "app/blimp_permission_manager.h",
+    "app/blimp_system_url_request_context_getter.cc",
+    "app/blimp_system_url_request_context_getter.h",
     "app/blimp_url_request_context_getter.cc",
     "app/blimp_url_request_context_getter.h",
     "app/engine_settings.cc",
     "app/engine_settings.h",
     "app/settings_manager.cc",
     "app/settings_manager.h",
     "app/switches.cc",
     "app/switches.h",
   ]
 
@@ skipping 199 matching lines @@
       _rebased_dockerfile,
       "--startup-script",
       _rebased_startup_script,
       "--manifest",
       _rebased_manifest,
       "--output",
       rebase_path(_bundle),
     ]
   }
 }