Group ConnectToApplication-related info into a params struct.

mojo/mojo_shell.gyp

 # 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.
 
 {
   'targets': [{
     'target_name': 'mojo_shell_lib',
     'type': 'static_library',
     'sources': [
       'shell/application_instance.cc',
       'shell/application_instance.h',
       'shell/application_loader.h',
       'shell/application_manager.cc',
       'shell/application_manager.h',
       'shell/capability_filter.cc',
       'shell/capability_filter.h',
+      'shell/connect_to_application_params.cc',
+      'shell/connect_to_application_params.h',
       'shell/content_handler_connection.cc',
       'shell/content_handler_connection.h',
       'shell/data_pipe_peek.cc',
       'shell/data_pipe_peek.h',
       'shell/fetcher.cc',
       'shell/fetcher.h',
       'shell/identity.cc',
       'shell/identity.h',
       'shell/local_fetcher.cc',
       'shell/local_fetcher.h',
@@ skipping 52 matching lines @@
       'mojom_files': [
         'shell/capability_filter_unittest.mojom',
         'shell/test.mojom',
       ],
     },
     'includes': [
       '../third_party/mojo/mojom_bindings_generator_explicit.gypi',
     ],
   }],
 }