Rework timeline/frame scheduling logic for SVGImage

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 17 matching lines @@
 #define SVGImage_h
 
 #include "platform/graphics/Image.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 class Document;
-class FrameView;
 class Page;
 class LayoutReplaced;
 class SVGImageChromeClient;
 class SVGImageForContainer;
 
 class SVGImage final : public Image {
 public:
     static PassRefPtr<SVGImage> create(ImageObserver* observer)
     {
         return adoptRef(new SVGImage(observer));
@@ skipping 12 matching lines @@
     void startAnimation(CatchUpAnimation = CatchUp) override;
     void stopAnimation() override;
     void resetAnimation() override;
 
     // Advances an animated image. This will trigger an animation update for CSS
     // and advance the SMIL timeline by one frame.
     void advanceAnimationForTesting() override;
 
     PassRefPtr<SkImage> imageForCurrentFrame() override;
 
-    // Returns the SVG image document's frame.
-    FrameView* frameView() const;
-
     // Does the SVG image/document contain any animations?
     bool hasAnimations() const;
+    // Service CSS and SMIL animations.
+    void serviceAnimations(double monotonicAnimationStartTime);
 
     void updateUseCounters(Document&) const;
 
     // The defaultObjectSize is assumed to be unzoomed, i.e. it should
     // not have the effective zoom level applied. The returned size is
     // thus also independent of current zoom level.
     FloatSize concreteObjectSize(const FloatSize& defaultObjectSize) const;
 
     bool hasIntrinsicDimensions() const;
 
 private:
-    friend class AXLayoutObject;
+    // Accesses m_page.
     friend class SVGImageChromeClient;
+    // Forwards calls to the various *ForContainer methods and other parts of
+    // the the Image interface.
     friend class SVGImageForContainer;
 
     ~SVGImage() override;
 
     String filenameExtension() const override;
 
     IntSize containerSize() const;
     bool usesContainerSize() const override { return true; }
 
     bool dataChanged(bool allDataReceived) override;
@@ skipping 42 matching lines @@
     {
         m_image->setImageObserverDisabled(false);
     }
 private:
     Image* m_image;
 };
 
 } // namespace blink
 
 #endif // SVGImage_h