Basic use implementation for MediaStream from Canvas: captureStream()

third_party/WebKit/public/platform/Platform.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 43 matching lines @@
 #include "WebURLError.h"
 #include "WebVector.h"
 #include "WebWaitableEvent.h"
 
 class GrContext;
 
 namespace blink {
 
 class WebAudioBus;
 class WebBlobRegistry;
+class WebCanvasCaptureHandler;
 class WebClipboard;
 class WebCompositorSupport;
 class WebConvertableToTraceFormat;
 class WebCookieJar;
 class WebCrypto;
 class WebDatabaseObserver;
 class WebDiscardableMemory;
 class WebPlatformEventListener;
 class WebFallbackThemeEngine;
 class WebFileSystem;
 class WebFileUtilities;
 class WebFlingAnimator;
 class WebGeofencingProvider;
 class WebGestureCurve;
 class WebGraphicsContext3DProvider;
 class WebIDBFactory;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
 class WebMediaRecorderHandler;
+class WebMediaStream;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMemoryDumpProvider;
 class WebMessagePortChannel;
 class WebMimeRegistry;
 class WebNavigatorConnectProvider;
 class WebNotificationManager;
 class WebPermissionClient;
 class WebPluginListBuilder;
 class WebPrescientNetworking;
@@ skipping 544 matching lines @@
     // Creates an WebMediaRecorderHandler to record MediaStreams.
     // May return null if the functionality is not available or out of resources.
     virtual WebMediaRecorderHandler* createMediaRecorderHandler() { return nullptr; }
 
     // May return null if WebRTC functionality is not avaliable or out of resources.
     virtual WebRTCCertificateGenerator* createRTCCertificateGenerator() { return nullptr; }
 
     // May return null if WebRTC functionality is not avaliable or out of resources.
     virtual WebMediaStreamCenter* createMediaStreamCenter(WebMediaStreamCenterClient*) { return nullptr; }
 
+    // Creates an WebCanvasCaptureHandler to capture Canvas output.
+    virtual WebCanvasCaptureHandler* createCanvasCaptureHandler(const WebSize&, double, WebMediaStream*) { return nullptr; }
     // WebWorker ----------------------------------------------------------
 
     virtual void didStartWorkerRunLoop() { }
     virtual void didStopWorkerRunLoop() { }
 
     // WebCrypto ----------------------------------------------------------
 
     virtual WebCrypto* crypto() { return nullptr; }
 
 
@@ skipping 86 matching lines @@
 protected:
     BLINK_PLATFORM_EXPORT Platform();
     virtual ~Platform() { }
 
     WebThread* m_mainThread;
 };
 
 } // namespace blink
 
 #endif