Check that SVGImage is loaded in ImageNotifyFinished()

third_party/WebKit/Source/core/svg/graphics/SVGImage.h

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 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
@@ skipping 50 matching lines @@
     return AdoptRef(new SVGImage(observer));
   }
 
   static bool IsInSVGImage(const Node*);
 
   LayoutReplaced* EmbeddedReplacedContent() const;
 
   bool IsSVGImage() const override { return true; }
   IntSize Size() const override { return intrinsic_size_; }
 
+  void CheckLoaded() const;
   bool CurrentFrameHasSingleSecurityOrigin() const override;
 
   void StartAnimation(CatchUpAnimation = kCatchUp) override;
   void ResetAnimation() override;
 
   // Does the SVG image/document contain any animations?
   bool MaybeAnimated() override;
 
   // Advances an animated image. This will trigger an animation update for CSS
   // and advance the SMIL timeline by one frame.
@@ skipping 146 matching lines @@
 
   ~ImageObserverDisabler() { image_->SetImageObserverDisabled(false); }
 
  private:
   Image* image_;
 };
 
 }  // namespace blink
 
 #endif  // SVGImage_h