Check the condition for animation policy of bitmapImage on notifyFinished.

Source/platform/graphics/BitmapImage.h

Index: Source/platform/graphics/BitmapImage.h
diff --git a/Source/platform/graphics/BitmapImage.h b/Source/platform/graphics/BitmapImage.h
index d7920d973164cf83a3c420e62e2bc8070978c030..0bdf4b88f492741e604eb2f6c4357b6d0ad896e1 100644
--- a/Source/platform/graphics/BitmapImage.h
+++ b/Source/platform/graphics/BitmapImage.h
@@ -79,6 +79,9 @@ public:
     virtual void resetAnimation() override;
     virtual bool maybeAnimated() override;
 
+    virtual void setAnimationPolicy(ImageAnimationPolicy policy) override { m_animationPolicy = policy; }
+    virtual ImageAnimationPolicy animationPolicy() override { return m_animationPolicy; }
+
     virtual PassRefPtr<NativeImageSkia> nativeImageForCurrentFrame() override;
     virtual PassRefPtr<Image> imageForDefaultFrame() override;
     virtual bool currentFrameKnownToBeOpaque() override;