Store mipmap levels in deferred texture image

include/core/SkImage.h

Index: include/core/SkImage.h
diff --git a/include/core/SkImage.h b/include/core/SkImage.h
index c9c56684604f8b1f12406c67593ed7e0b4b129fc..b373e30fa7941448c2ca314dedd1b77840e162f4 100644
--- a/include/core/SkImage.h
+++ b/include/core/SkImage.h
@@ -384,7 +384,9 @@ public:
     size_t getDeferredTextureImageData(const GrContextThreadSafeProxy&,
                                        const DeferredTextureImageUsageParams[],
                                        int paramCnt,
-                                       void* buffer) const;
+                                       void* buffer,
+                                       SkSourceGammaTreatment treatment =
+                                       SkSourceGammaTreatment::kIgnore) const;
 
     /**
      * Returns a texture-backed image from data produced in SkImage::getDeferredTextureImageData.
@@ -459,7 +461,7 @@ protected:
 private:
     static sk_sp<SkImage> MakeTextureFromMipMap(GrContext*, const SkImageInfo&,
                                                 const GrMipLevel* texels, int mipLevelCount,
-                                                SkBudgeted);
+                                                SkBudgeted, SkSourceGammaTreatment);
 
     const int       fWidth;
     const int       fHeight;