Adds plumbing to pass WebUI mojo::Handle from browser to renderer

mojo/mojo_examples.gypi

 # Copyright 2013 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_sample_app',
       'type': 'shared_library',
       'dependencies': [
@@ skipping 213 matching lines @@
             'app_name': 'mojo_aura_demo',
           },
           'includes': [ 'build/package_app.gypi' ],
         },
         {
           'target_name': 'mojo_launcher_bindings',
           'type': 'static_library',
           'sources': [
             'examples/launcher/launcher.mojom',
           ],
+          'variables': {
+            'mojom_base_output_dir': 'mojo',
+          },
           'includes': [ 'public/bindings/mojom_bindings_generator.gypi' ],
           'export_dependent_settings': [
             'mojo_bindings',
             'mojo_system',
           ],
           'dependencies': [
             'mojo_bindings',
             'mojo_system',
           ],
         },
@@ skipping 28 matching lines @@
             'app_name': 'mojo_launcher',
           },
           'includes': [ 'build/package_app.gypi' ],
         },
         {
           'target_name': 'mojo_view_manager_bindings',
           'type': 'static_library',
           'sources': [
             'examples/view_manager/view_manager.mojom',
           ],
+          'variables': {
+            'mojom_base_output_dir': 'mojo',
+          },
           'includes': [ 'public/bindings/mojom_bindings_generator.gypi' ],
           'export_dependent_settings': [
             'mojo_bindings',
             'mojo_system',
           ],
           'dependencies': [
             'mojo_bindings',
             'mojo_system',
           ],
         },
@@ skipping 19 matching lines @@
           'target_name': 'package_mojo_view_manager',
           'variables': {
             'app_name': 'mojo_view_manager',
           },
           'includes': [ 'build/package_app.gypi' ],
         },
       ],
     }],
   ],
 }