Basic use implementation for MediaStream from Canvas: captureStream()

third_party/WebKit/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 86 matching lines @@
       'indexeddb/IDBCursorWithValue.idl',
       'indexeddb/IDBDatabase.idl',
       'indexeddb/IDBFactory.idl',
       'indexeddb/IDBIndex.idl',
       'indexeddb/IDBKeyRange.idl',
       'indexeddb/IDBObjectStore.idl',
       'indexeddb/IDBOpenDBRequest.idl',
       'indexeddb/IDBRequest.idl',
       'indexeddb/IDBTransaction.idl',
       'indexeddb/IDBVersionChangeEvent.idl',
+      'mediacapturefromelement/CanvasCaptureMediaStream.idl',
       'mediarecorder/BlobEvent.idl',
       'mediarecorder/MediaRecorder.idl',
       'mediarecorder/MediaRecorderErrorEvent.idl',
       'mediasession/MediaSession.idl',
       'mediasource/MediaSource.idl',
       'mediasource/SourceBuffer.idl',
       'mediasource/SourceBufferList.idl',
       'mediasource/TrackDefault.idl',
       'mediasource/TrackDefaultList.idl',
       'mediasource/VideoPlaybackQuality.idl',
@@ skipping 223 matching lines @@
       'filesystem/WindowFileSystem.idl',
       'filesystem/WorkerGlobalScopeFileSystem.idl',
       'gamepad/NavigatorGamepad.idl',
       'geofencing/ServiceWorkerGlobalScopeGeofencing.idl',
       'geofencing/ServiceWorkerRegistrationGeofencing.idl',
       'geofencing/WorkerNavigatorGeofencing.idl',
       'geolocation/NavigatorGeolocation.idl',
       'imagebitmap/WindowImageBitmapFactories.idl',
       'indexeddb/WindowIndexedDatabase.idl',
       'indexeddb/WorkerGlobalScopeIndexedDatabase.idl',
+      'mediacapturefromelement/HTMLCanvasElementCapture.idl',
       'mediasession/HTMLMediaElementMediaSession.idl',
       'mediasource/HTMLVideoElementMediaSource.idl',
       'mediasource/URLMediaSource.idl',
       'mediastream/NavigatorMediaStream.idl',
       'mediastream/NavigatorUserMedia.idl',
       'mediastream/URLMediaStream.idl',
       'mediastream/WindowMediaStream.idl',
       'navigatorconnect/NavigatorServices.idl',
       'navigatorconnect/ServiceWorkerGlobalScopeNavigatorConnect.idl',
       'navigatorconnect/WorkerNavigatorServices.idl',
@@ skipping 759 matching lines @@
       'indexeddb/IndexedDBClient.cpp',
       'indexeddb/IndexedDBClient.h',
       'indexeddb/InspectorIndexedDBAgent.cpp',
       'indexeddb/InspectorIndexedDBAgent.h',
       'indexeddb/WebIDBCallbacksImpl.cpp',
       'indexeddb/WebIDBCallbacksImpl.h',
       'indexeddb/WebIDBDatabaseCallbacksImpl.cpp',
       'indexeddb/WebIDBDatabaseCallbacksImpl.h',
       'indexeddb/WorkerGlobalScopeIndexedDatabase.cpp',
       'indexeddb/WorkerGlobalScopeIndexedDatabase.h',
+      'mediacapturefromelement/AutoCanvasDrawListener.cpp',
+      'mediacapturefromelement/AutoCanvasDrawListener.h',
+      'mediacapturefromelement/CanvasCaptureMediaStream.cpp',
+      'mediacapturefromelement/CanvasCaptureMediaStream.h',
+      'mediacapturefromelement/HTMLCanvasElementCapture.cpp',
+      'mediacapturefromelement/HTMLCanvasElementCapture.h',
       'mediarecorder/BlobEvent.cpp',
       'mediarecorder/BlobEvent.h',
       'mediarecorder/MediaRecorder.cpp',
       'mediarecorder/MediaRecorder.h',
       'mediarecorder/MediaRecorderErrorEvent.cpp',
       'mediarecorder/MediaRecorderErrorEvent.h',
       'mediasession/HTMLMediaElementMediaSession.cpp',
       'mediasession/HTMLMediaElementMediaSession.h',
       'mediasession/MediaSession.cpp',
       'mediasession/MediaSession.h',
@@ skipping 736 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }