Rework timeline/frame scheduling logic for SVGImage

third_party/WebKit/Source/core/css/CSSCrossfadeValue.h

Index: third_party/WebKit/Source/core/css/CSSCrossfadeValue.h
diff --git a/third_party/WebKit/Source/core/css/CSSCrossfadeValue.h b/third_party/WebKit/Source/core/css/CSSCrossfadeValue.h
index 639eca33b02f2b70a49b75363614df2be7adc8b6..4a4b722b6d7717e968fb8010b13f042c370f84dd 100644
--- a/third_party/WebKit/Source/core/css/CSSCrossfadeValue.h
+++ b/third_party/WebKit/Source/core/css/CSSCrossfadeValue.h
@@ -88,6 +88,7 @@ private:
         }
 
         void imageChanged(ImageResource*, const IntRect* = nullptr) override;
+        bool willRenderImage() override;
         String debugName() const override { return "CrossfadeSubimageObserverProxy"; }
         void setReady(bool ready) { m_ready = ready; }
     private:
@@ -95,6 +96,7 @@ private:
         bool m_ready;
     };
 
+    bool willRenderImage() const;
     void crossfadeChanged(const IntRect&);
 
     Member<CSSValue> m_fromValue;