forgot base impl

src/image/SkImage.cpp

Index: src/image/SkImage.cpp
diff --git a/src/image/SkImage.cpp b/src/image/SkImage.cpp
index 05b6d45c04a495b19f2225fab9f17ec1b4fff00a..c55d28a177f16c5e075b3aa77113a959ee15cd56 100644
--- a/src/image/SkImage.cpp
+++ b/src/image/SkImage.cpp
@@ -53,6 +53,10 @@ bool SkImage::readPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dst
     return as_IB(this)->onReadPixels(rec.fInfo, rec.fPixels, rec.fRowBytes, rec.fX, rec.fY);
 }
 
+void SkImage::preroll(GrContext* ctx) const {
+    as_IB(this)->onPreroll(ctx);
+}
+
 SkShader* SkImage::newShader(SkShader::TileMode tileX,
                              SkShader::TileMode tileY,
                              const SkMatrix* localMatrix) const {