Client side display item cache flag

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 71 matching lines @@
     // thus also independent of current zoom level.
     FloatSize concreteObjectSize(const FloatSize& defaultObjectSize) const;
 
     // DisplayItemClient methods.
     String debugName() const final { return "SVGImage"; }
     LayoutRect visualRect() const override;
 
     bool hasIntrinsicDimensions() const;
 
 private:
+    DISPLAY_ITEM_CACHE_STATUS_UNCACHEABLE_IMPLEMENTATION

[chrishtr, 2016/04/28 20:22:15]

Why can't we cache SVGImage?

+
     friend class AXLayoutObject;
     friend class SVGImageChromeClient;
     friend class SVGImageForContainer;
 
     ~SVGImage() override;
 
     String filenameExtension() const override;
 
     IntSize containerSize() const;
     bool usesContainerSize() const override { return true; }
@@ skipping 44 matching lines @@
     {
         m_image->setImageObserverDisabled(false);
     }
 private:
     Image* m_image;
 };
 
 } // namespace blink
 
 #endif // SVGImage_h