Add display list fallback reason histograms for 2D canvas

third_party/WebKit/Source/core/html/HTMLVideoElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 266 matching lines @@
 }
 
 KURL HTMLVideoElement::posterImageURL() const
 {
     String url = stripLeadingAndTrailingHTMLSpaces(imageSourceURL());
     if (url.isEmpty())
         return KURL();
     return document().completeURL(url);
 }
 
-PassRefPtr<Image> HTMLVideoElement::getSourceImageForCanvas(SourceImageStatus* status, AccelerationHint) const
+PassRefPtr<Image> HTMLVideoElement::getSourceImageForCanvas(SourceImageStatus* status, AccelerationHint, SnapshotReason) const
 {
     if (!hasAvailableVideoFrame()) {
         *status = InvalidSourceImageStatus;
         return nullptr;
     }
 
     IntSize intrinsicSize(videoWidth(), videoHeight());
     // FIXME: Not sure if we dhould we be doing anything with the AccelerationHint argument here?
     OwnPtr<ImageBuffer> imageBuffer = ImageBuffer::create(intrinsicSize);
     if (!imageBuffer) {
@@ skipping 39 matching lines @@
         return ScriptPromise();
     }
     if (!sw || !sh) {
         exceptionState.throwDOMException(IndexSizeError, String::format("The source %s provided is 0.", sw ? "height" : "width"));
         return ScriptPromise();
     }
     return ImageBitmapSource::fulfillImageBitmap(scriptState, ImageBitmap::create(this, IntRect(sx, sy, sw, sh), eventTarget.toDOMWindow()->document()));
 }
 
 } // namespace blink