4f linear gradient shader blitters

src/effects/gradients/Sk4fGradientBase.cpp

Index: src/effects/gradients/Sk4fGradientBase.cpp
diff --git a/src/effects/gradients/Sk4fGradientBase.cpp b/src/effects/gradients/Sk4fGradientBase.cpp
index a7298127907f38aff93a2af0c7dc3b8bd650980e..bc14e76233891acf81a6a7f9198f1b1e9ddfbc4e 100644
--- a/src/effects/gradients/Sk4fGradientBase.cpp
+++ b/src/effects/gradients/Sk4fGradientBase.cpp
@@ -334,7 +334,7 @@ GradientShaderBase4fContext::shadeSpanInternal(int x, int y,
         this->mapTs(x, y, ts, n);
         for (int i = 0; i < n; ++i) {
             const Sk4f c = sampler.sample(ts[i]);
-            store<DstType, do_premul>(c, dst++);
+            store<DstType, kLinear_SkColorProfileType, do_premul>(c, dst++);
         }
         x += n;
         count -= n;
@@ -424,8 +424,8 @@ private:
     }
 
     void loadIntervalData(const Interval* i) {
-        fCc = dst_swizzle<DstType>(i->fC0) * dst_component_scale<DstType>();
-        fDc = dst_swizzle<DstType>(i->fDc) * dst_component_scale<DstType>();
+        fCc = scale_for_dest<DstType, kLinear_SkColorProfileType>(dst_swizzle<DstType>(i->fC0));
+        fDc = scale_for_dest<DstType, kLinear_SkColorProfileType>(dst_swizzle<DstType>(i->fDc));
     }
 
     const Interval* fFirstInterval;