qimagevideobuffer.cpp: Fix deprecation warning

video/qimagevideobuffer.cpp:92:44: warning: ‘int QImage::byteCount() const’ is deprecated: Use sizeInBytes [-Wdeprecated-declarations]

Change-Id: I029083760b255e0bce48ab40e059da9c0a578f91
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

src/multimedia/video/qimagevideobuffer.cpp

@@ -89,7 +89,7 @@ uchar *QImageVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
         d->mapMode = mode;
 
         if (numBytes)
-            *numBytes = d->image.byteCount();
+            *numBytes = int(d->image.sizeInBytes());
 
         if (bytesPerLine)
             *bytesPerLine = d->image.bytesPerLine();