SkBlurImageFilter returns input when sigma = 0

bench/BlurImageFilterBench.cpp

Index: bench/BlurImageFilterBench.cpp
diff --git a/bench/BlurImageFilterBench.cpp b/bench/BlurImageFilterBench.cpp
index 7ed600632a1c3141ee1fab87dbcf6a53d7241f0e..6e2dca0794cd11c9c610386ecaecb9be97ffcfc0 100644
--- a/bench/BlurImageFilterBench.cpp
+++ b/bench/BlurImageFilterBench.cpp
@@ -80,7 +80,8 @@ protected:
 
         const SkImageFilter::CropRect* crop =
             fIsExpanded ? &cropRectLarge : fIsCropped ? &cropRect : nullptr;
-        paint.setImageFilter(SkBlurImageFilter::Create(fSigmaX, fSigmaY, input, crop))->unref();
+        SkAutoTUnref<SkImageFilter> blur(SkBlurImageFilter::Create(fSigmaX, fSigmaY, input, crop));
+        paint.setImageFilter(blur.get());

[reed1, 2015/12/10 19:41:17]

trivial nit:

paint.setImageFilter(blur);

no need to explicitly call .get()

 
         for (int i = 0; i < loops; i++) {
             canvas->drawBitmap(fCheckerboard, kX, kY, &paint);