MediaStream Image Capture (2): Platform::ImageCaptureFrameGrabber and grabFrame()

third_party/WebKit/Source/modules/imagecapture/ImageCapture.h

 // Copyright 2016 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.
 
 #ifndef ImageCapture_h
 #define ImageCapture_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventTarget.h"
 #include "modules/EventTargetModules.h"
 #include "modules/ModulesExport.h"
 #include "platform/AsyncMethodRunner.h"
 
 namespace blink {
 
 class ExceptionState;
 class MediaStreamTrack;
+class WebImageCaptureFrameGrabber;
 
 // TODO(mcasas): Consideradding a LayoutTest checking that this class is not
 // garbage collected while it has event listeners.
 class MODULES_EXPORT ImageCapture final
     : public EventTargetWithInlineData
     , public ActiveScriptWrappable
     , public ContextLifecycleObserver {
     USING_GARBAGE_COLLECTED_MIXIN(ImageCapture);
     DEFINE_WRAPPERTYPEINFO();
 public:
@@ skipping 16 matching lines @@
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     ImageCapture(ExecutionContext*, MediaStreamTrack*);
 
     // EventTarget implementation.
     bool addEventListenerInternal(const AtomicString& eventType, EventListener*, const EventListenerOptions&) override;
 
     Member<MediaStreamTrack> m_streamTrack;
+    OwnPtr<WebImageCaptureFrameGrabber> m_frameGrabber;
 };
 
 } // namespace blink
 
 #endif // ImageCapture_h