Switch SkColorFilterImageFilter over to new onFilterImage interface

src/core/SkSpecialImage.cpp

Index: src/core/SkSpecialImage.cpp
diff --git a/src/core/SkSpecialImage.cpp b/src/core/SkSpecialImage.cpp
index dfbde75dc7eea30813401f1e45ecde11893d48a8..0a25034af6cf02e7fa1b2ffae7d88df16e809e73 100644
--- a/src/core/SkSpecialImage.cpp
+++ b/src/core/SkSpecialImage.cpp
@@ -67,6 +67,10 @@ sk_sp<SkSpecialImage> SkSpecialImage::makeTextureImage(SkImageFilter::Proxy* pro
         return nullptr;
     }
 
+    if (bmp.empty()) {
+        return SkSpecialImage::MakeFromRaster(proxy, SkIRect::MakeEmpty(), bmp);
+    }
+
     SkAutoTUnref<GrTexture> resultTex(
         GrRefCachedBitmapTexture(context, bmp, GrTextureParams::ClampNoFilter()));
     if (!resultTex) {