Add output format properties to SkImageFilter::Context

include/effects/SkXfermodeImageFilter.h

 /*
  * Copyright 2013 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkXfermodeImageFilter_DEFINED
 #define SkXfermodeImageFilter_DEFINED
 
@@ skipping 45 matching lines @@
 protected:
     sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
                                         SkIPoint* offset) const override;
 
 #if SK_SUPPORT_GPU
     sk_sp<SkSpecialImage> filterImageGPU(SkSpecialImage* source,
                                          sk_sp<SkSpecialImage> background,
                                          const SkIPoint& backgroundOffset,
                                          sk_sp<SkSpecialImage> foreground,
                                          const SkIPoint& foregroundOffset,
-                                         const SkIRect& bounds) const;
+                                         const SkIRect& bounds,
+                                         const OutputProperties& outputProperties) const;
 #endif
 
     SkXfermodeImageFilter(sk_sp<SkXfermode> mode, sk_sp<SkImageFilter> inputs[2],
                           const CropRect* cropRect);
     void flatten(SkWriteBuffer&) const override;
 
 private:
     sk_sp<SkXfermode> fMode;
     typedef SkImageFilter INHERITED;
 };
 
 #endif