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-rw-r--r--dom/html/HTMLCanvasElement.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/dom/html/HTMLCanvasElement.h b/dom/html/HTMLCanvasElement.h
index 586a43fedc..d5a4e019ff 100644
--- a/dom/html/HTMLCanvasElement.h
+++ b/dom/html/HTMLCanvasElement.h
@@ -356,6 +356,8 @@ class HTMLCanvasElement final : public nsGenericHTMLElement,
layers::ImageContainer* GetImageContainer() const { return mImageContainer; }
+ bool UsingCaptureStream() const { return !!mRequestedFrameRefreshObserver; }
+
protected:
bool mResetLayer;
bool mMaybeModified; // we fetched the context, so we may have written to the