Add output format properties to SkImageFilter::Context

src/core/SkBitmapDevice.cpp

Index: src/core/SkBitmapDevice.cpp
diff --git a/src/core/SkBitmapDevice.cpp b/src/core/SkBitmapDevice.cpp
index 4f8074d3a672ea0df255a09cc540b5c726e552fa..440de68345f4a2c67bd86531939de2ed9feb96d8 100644
--- a/src/core/SkBitmapDevice.cpp
+++ b/src/core/SkBitmapDevice.cpp
@@ -395,7 +395,8 @@ void SkBitmapDevice::drawSpecial(const SkDraw& draw, SkSpecialImage* srcImg, int
         matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y));
         const SkIRect clipBounds = draw.fRC->getBounds().makeOffset(-x, -y);
         SkAutoTUnref<SkImageFilterCache> cache(this->getImageFilterCache());
-        SkImageFilter::Context ctx(matrix, clipBounds, cache.get());
+        SkImageFilter::OutputProperties outputProperties(fBitmap.colorSpace());
+        SkImageFilter::Context ctx(matrix, clipBounds, cache.get(), outputProperties);
         
         sk_sp<SkSpecialImage> resultImg(filter->filterImage(srcImg, ctx, &offset));
         if (resultImg) {