Move modules-related attributes out from Window.idl.

Source/modules/modules.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
     # ways.
     'extra_blink_module_idl_files': [],
     'extra_blink_module_files': [],
     # Files for which bindings (.cpp and .h files) will be generated
@@ skipping 191 matching lines @@
       'gamepad/NavigatorGamepad.idl',
       'geolocation/NavigatorGeolocation.idl',
       'imagebitmap/ImageBitmapFactories.idl',
       'imagebitmap/WindowImageBitmapFactories.idl',
       'indexeddb/WindowIndexedDatabase.idl',
       'indexeddb/WorkerGlobalScopeIndexedDatabase.idl',
       'mediasource/HTMLVideoElementMediaSource.idl',
       'mediasource/URLMediaSource.idl',
       'mediastream/NavigatorMediaStream.idl',
       'mediastream/URLMediaStream.idl',
+      'mediastream/WindowMediaStream.idl',
       'navigatorcontentutils/NavigatorContentUtils.idl',
       'performance/SharedWorkerPerformance.idl',
       'performance/WorkerGlobalScopePerformance.idl',
       'push_messaging/NavigatorPushManager.idl',
       'quota/NavigatorStorageQuota.idl',
       'quota/WindowQuota.idl',
       'quota/WorkerNavigatorStorageQuota.idl',
       'screen_orientation/ScreenOrientation.idl',
       'serviceworkers/NavigatorServiceWorker.idl',
+      'speech/WindowSpeech.idl',
       'speech/WindowSpeechSynthesis.idl',
       'vibration/NavigatorVibration.idl',
+      'webaudio/WindowWebAudio.idl',
       'webdatabase/WindowWebDatabase.idl',
       'webdatabase/WorkerGlobalScopeWebDatabase.idl',
       'webmidi/NavigatorWebMIDI.idl',
     ],
     # interfaces that inherit from Event
     'modules_event_idl_files': [
       'device_orientation/DeviceMotionEvent.idl',
       'device_orientation/DeviceOrientationEvent.idl',
       'encryptedmedia/MediaKeyMessageEvent.idl',
       'encryptedmedia/MediaKeyNeededEvent.idl',
@@ skipping 679 matching lines @@
       'indexeddb/IDBKeyPathTest.cpp',
       'indexeddb/IDBRequestTest.cpp',
       'indexeddb/IDBTransactionTest.cpp',
       'websockets/WebSocketDeflaterTest.cpp',
       'websockets/WebSocketExtensionDispatcherTest.cpp',
       'websockets/WebSocketExtensionParserTest.cpp',
       'websockets/WebSocketPerMessageDeflateTest.cpp',
     ],
   },
 }