Consume Mojo services directly in Blink's WebUSB implementation.

device/usb/usb.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
+    'mojom_files': [
+      'public/interfaces/chooser_service.mojom',
+      'public/interfaces/device.mojom',
+      'public/interfaces/device_manager.mojom',
+    ],
   },
   'targets': [
     {
       'target_name': 'device_usb',
       'type': 'static_library',
       'dependencies': [
         'device_usb_mojo_bindings',
         '../../components/components.gyp:device_event_log_component',
         '../../net/net.gyp:net',
         '../../third_party/libusb/libusb.gyp:libusb',
@@ skipping 116 matching lines @@
           'sources!': [
             'usb_device_handle_impl.cc',
             'usb_device_handle_impl.h',
           ]
         }]
       ]
     },
     {
       'target_name': 'device_usb_mojo_bindings',
       'type': 'static_library',
-      'sources': [
-        'public/interfaces/chooser_service.mojom',
-        'public/interfaces/device.mojom',
-        'public/interfaces/device_manager.mojom',
-      ],
+      'sources': [ '<@(mojom_files)' ],
       'includes': [
         '../../mojo/mojom_bindings_generator.gypi',
       ],
+    },
+    {
+      'target_name': 'device_usb_mojo_bindings_for_blink',
+      'type': 'static_library',
+      'sources': [ '<@(mojom_files)' ],
+      'variables': {
+        'mojom_variant': 'wtf',
+        'for_blink': 'true',
+      },
+      'includes': [
+        '../../mojo/mojom_bindings_generator.gypi',
+      ],
     },
     {
       'target_name': 'device_usb_mocks',
       'type': 'static_library',
       'include_dirs': [
         '../..',
       ],
       'dependencies': [
         '../../testing/gmock.gyp:gmock',
         'device_usb',
@@ skipping 43 matching lines @@
           'type': 'none',
           'variables': {
             'source_file': 'usb_descriptors.h',
           },
           'includes': [ '../../build/android/java_cpp_enum.gypi' ],
         },
       ],
     }],
   ],
 }