Remove RenderImage

sky/engine/core/fetch/ImageResourceClient.h

Index: sky/engine/core/fetch/ImageResourceClient.h
diff --git a/sky/engine/core/fetch/ImageResourceClient.h b/sky/engine/core/fetch/ImageResourceClient.h
index 61f15ee930b6541a0335264167acf2e9d23df5e4..16c12fc71d4e8b0fd7b38979df7e19ac8ce3cd46 100644
--- a/sky/engine/core/fetch/ImageResourceClient.h
+++ b/sky/engine/core/fetch/ImageResourceClient.h
@@ -39,12 +39,6 @@ public:
     // Called whenever a frame of an image changes, either because we got more data from the network or
     // because we are animating. If not null, the IntRect is the changed rect of the image.
     virtual void imageChanged(ImageResource*, const IntRect* = 0) { }
-
-    // Called to find out if this client wants to actually display the image. Used to tell when we
-    // can halt animation. Content nodes that hold image refs for example would not render the image,
-    // but RenderImages would (assuming they have visibility: visible and their render tree isn't hidden
-    // e.g., in the b/f cache or in a background tab).
-    virtual bool willRenderImage(ImageResource*) { return false; }
 };
 
 }