Tweak distance field path renderer behavior in gamma-correct mode

include/gpu/GrPaint.h

Index: include/gpu/GrPaint.h
diff --git a/include/gpu/GrPaint.h b/include/gpu/GrPaint.h
index f9633e79788af716951b5b7a27df4f7a05a5cc4e..7de559ca4c0b6cbe5dbdb986975c0d8307a8ae36 100644
--- a/include/gpu/GrPaint.h
+++ b/include/gpu/GrPaint.h
@@ -71,8 +71,8 @@ public:
     bool getAllowSRGBInputs() const { return fAllowSRGBInputs; }
 
     /**
-     * Should rendering be gamma-correct. Causes sRGB inputs to perform conversion to linear,
-     * and outputs to be converted from linear to sRGB (if the destination is sRGB).
+     * Should rendering be gamma-correct, end-to-end. Causes sRGB render targets to behave
+     * as such (with linear blending), and sRGB inputs to be filtered and decoded correctly.
      */
     void setGammaCorrect(bool gammaCorrect) {
         setDisableOutputConversionToSRGB(!gammaCorrect);