Gamma-correctness pushed into Skia, top-down.

src/effects/SkBlurMaskFilter.cpp

Index: src/effects/SkBlurMaskFilter.cpp
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index bb6a8a5ae64452a843ab325f41359a4a307e6860..8909fc0b61ead3c8727868157fa10ea71c4b3d94 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -68,7 +68,8 @@ public:
                        const SkMatrix& ctm,
                        const SkRect& maskRect,
                        GrTexture** result,
-                       bool canOverwriteSrc) const override;
+                       bool canOverwriteSrc,
+                       bool allowSRGBInputs) const override;
 #endif
 
     void computeFastBounds(const SkRect&, SkRect*) const override;
@@ -1231,7 +1232,8 @@ bool SkBlurMaskFilterImpl::filterMaskGPU(GrTexture* src,
                                          const SkMatrix& ctm,
                                          const SkRect& maskRect,
                                          GrTexture** result,
-                                         bool canOverwriteSrc) const {
+                                         bool canOverwriteSrc,
+                                         bool allowSRGBInputs) const {
     SkRect clipRect = SkRect::MakeWH(maskRect.width(), maskRect.height());
 
     GrContext* context = src->getContext();
@@ -1243,13 +1245,15 @@ bool SkBlurMaskFilterImpl::filterMaskGPU(GrTexture* src,
     // gaussianBlur.  Otherwise, we need to save it for later compositing.
     bool isNormalBlur = (kNormal_SkBlurStyle == fBlurStyle);
     *result = SkGpuBlurUtils::GaussianBlur(context, src, isNormalBlur && canOverwriteSrc,
-                                           clipRect, nullptr, xformedSigma, xformedSigma);
+                                           allowSRGBInputs, clipRect, nullptr,
+                                           xformedSigma, xformedSigma);
     if (nullptr == *result) {
         return false;
     }
 
     if (!isNormalBlur) {
         GrPaint paint;
+        // SRGBTODO: AllowSRGBInputs?
         SkMatrix matrix;
         matrix.setIDiv(src->width(), src->height());
         // Blend pathTexture over blurTexture.