Add WebUSB bindings and client interface

Source/modules/modules.gypi

 {
   'includes': [
     '../core/core_generated.gypi',
     'modules_generated.gypi',
   ],
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
@@ skipping 272 matching lines @@
       'webmidi/MIDIAccess.idl',
       'webmidi/MIDIConnectionEvent.idl',
       'webmidi/MIDIInput.idl',
       'webmidi/MIDIInputMap.idl',
       'webmidi/MIDIMessageEvent.idl',
       'webmidi/MIDIOutput.idl',
       'webmidi/MIDIOutputMap.idl',
       'webmidi/MIDIPort.idl',
       'websockets/CloseEvent.idl',
       'websockets/WebSocket.idl',
+      'webusb/USB.idl',
+      'webusb/USBAlternateInterface.idl',
+      'webusb/USBConfiguration.idl',
+      'webusb/USBDevice.idl',
+      'webusb/USBEndpoint.idl',
+      'webusb/USBInTransferResult.idl',
+      'webusb/USBInterface.idl',
+      'webusb/USBOutTransferResult.idl',
+      'webusb/USBTransferStatus.idl',
     ],
     # 'partial interface' or target (right side of) 'implements'
     'modules_dependency_idl_files': [
       'audio_output_devices/HTMLMediaElementAudioOutputDevice.idl',
       'background_sync/ServiceWorkerGlobalScopeSync.idl',
       'background_sync/ServiceWorkerRegistrationSync.idl',
       'battery/NavigatorBattery.idl',
       'beacon/NavigatorBeacon.idl',
       'bluetooth/NavigatorBluetooth.idl',
       'cachestorage/CompositorWorkerCacheStorage.idl',
@@ skipping 58 matching lines @@
       'speech/WindowSpeech.idl',
       'speech/WindowSpeechSynthesis.idl',
       'storage/WindowStorage.idl',
       'vibration/NavigatorVibration.idl',
       'vr/NavigatorVRDevice.idl',
       'webaudio/WindowWebAudio.idl',
       'webdatabase/WindowWebDatabase.idl',
       'webgl/WebGL2RenderingContextBase.idl',
       'webgl/WebGLRenderingContextBase.idl',
       'webmidi/NavigatorWebMIDI.idl',
+      'webusb/NavigatorUSB.idl',
     ],
     # interfaces that inherit from Event
     'modules_event_idl_files': [
       'app_banner/BeforeInstallPromptEvent.idl',
       'background_sync/PeriodicSyncEvent.idl',
       'background_sync/SyncEvent.idl',
       'device_light/DeviceLightEvent.idl',
       'device_orientation/DeviceMotionEvent.idl',
       'device_orientation/DeviceOrientationEvent.idl',
       'encryptedmedia/MediaEncryptedEvent.idl',
@@ skipping 81 matching lines @@
       'speech/SpeechRecognitionErrorInit.idl',
       'speech/SpeechRecognitionEventInit.idl',
       'storage/StorageEventInit.idl',
       'vr/VRFieldOfViewInit.idl',
       'webgl/WebGLContextAttributes.idl',
       'webgl/WebGLContextEventInit.idl',
       'webmidi/MIDIConnectionEventInit.idl',
       'webmidi/MIDIMessageEventInit.idl',
       'webmidi/MIDIOptions.idl',
       'websockets/CloseEventInit.idl',
+      'webusb/USBControlTransferParameters.idl',
+      'webusb/USBDeviceEnumerationOptions.idl',
+      'webusb/USBDeviceFilter.idl',
     ],
     'generated_modules_files': [
       # .cpp files from make_modules_generated actions.
       '<(blink_modules_output_dir)/EventModules.cpp',
       '<(blink_modules_output_dir)/EventModulesHeaders.h',
       '<(blink_modules_output_dir)/EventModulesNames.cpp',
       '<(blink_modules_output_dir)/EventModulesNames.h',
       '<(blink_modules_output_dir)/EventTargetModulesNames.cpp',
       '<(blink_modules_output_dir)/EventTargetModulesNames.h',
       '<(blink_modules_output_dir)/IndexedDBNames.cpp',
@@ skipping 115 matching lines @@
       '<(blink_modules_output_dir)/webgl/WebGLContextEventInit.cpp',
       '<(blink_modules_output_dir)/webgl/WebGLContextEventInit.h',
       '<(blink_modules_output_dir)/webmidi/MIDIConnectionEventInit.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIConnectionEventInit.h',
       '<(blink_modules_output_dir)/webmidi/MIDIMessageEventInit.h',
       '<(blink_modules_output_dir)/webmidi/MIDIMessageEventInit.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIOptions.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIOptions.h',
       '<(blink_modules_output_dir)/websockets/CloseEventInit.cpp',
       '<(blink_modules_output_dir)/websockets/CloseEventInit.h',
+      '<(blink_modules_output_dir)/webusb/USBControlTransferParameters.cpp',
+      '<(blink_modules_output_dir)/webusb/USBControlTransferParameters.h',
+      '<(blink_modules_output_dir)/webusb/USBDeviceEnumerationOptions.cpp',
+      '<(blink_modules_output_dir)/webusb/USBDeviceEnumerationOptions.h',
+      '<(blink_modules_output_dir)/webusb/USBDeviceFilter.cpp',
+      '<(blink_modules_output_dir)/webusb/USBDeviceFilter.h',
     ],
     'modules_files': [
       '<@(extra_blink_module_files)',
       '<@(generated_modules_dictionary_files)',
       '<@(generated_modules_files)',
       'InitModules.cpp',
       'InitModules.h',
       'accessibility/AXARIAGrid.cpp',
       'accessibility/AXARIAGrid.h',
       'accessibility/AXARIAGridCell.cpp',
@@ skipping 1051 matching lines @@
       'websockets/DocumentWebSocketChannel.h',
       'websockets/InspectorWebSocketEvents.cpp',
       'websockets/InspectorWebSocketEvents.h',
       'websockets/WebSocketChannel.cpp',
       'websockets/WebSocketChannel.h',
       'websockets/WebSocketChannelClient.h',
       'websockets/WebSocketFrame.cpp',
       'websockets/WebSocketFrame.h',
       'websockets/WorkerWebSocketChannel.cpp',
       'websockets/WorkerWebSocketChannel.h',
+      'webusb/NavigatorUSB.cpp',
+      'webusb/NavigatorUSB.h',
+      'webusb/USB.cpp',
+      'webusb/USB.h',
+      'webusb/USBAlternateInterface.cpp',
+      'webusb/USBAlternateInterface.h',
+      'webusb/USBConfiguration.cpp',
+      'webusb/USBConfiguration.h',
+      'webusb/USBController.cpp',
+      'webusb/USBController.h',
+      'webusb/USBDevice.cpp',
+      'webusb/USBDevice.h',
+      'webusb/USBEndpoint.cpp',
+      'webusb/USBEndpoint.h',
+      'webusb/USBError.cpp',
+      'webusb/USBError.h',
+      'webusb/USBInTransferResult.h',
+      'webusb/USBInterface.cpp',
+      'webusb/USBInterface.h',
+      'webusb/USBOutTransferResult.h',
     ],
     # 'partial interface' or target (right side of) 'implements'
     'modules_testing_dependency_idl_files' : [
       'accessibility/testing/InternalsAccessibility.idl',
       'geolocation/testing/InternalsGeolocation.idl',
       'navigatorcontentutils/testing/InternalsNavigatorContentUtils.idl',
       'serviceworkers/testing/InternalsServiceWorker.idl',
       'speech/testing/InternalsSpeechSynthesis.idl',
       'vibration/testing/InternalsVibration.idl',
       'webaudio/testing/InternalsWebAudio.idl',
@@ skipping 46 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }