Tweak distance field path renderer behavior in gamma-correct mode

src/gpu/GrDrawTarget.h

Index: src/gpu/GrDrawTarget.h
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index c863b455b36ed8ae630424daf503c179cdb8d6b1..70c1ed9bb5de56577dc34fb0208d479ce4ebe920 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -174,6 +174,7 @@ public:
     GrAuditTrail* getAuditTrail() const { return fAuditTrail; }
 
 private:
+    friend class GrAADistanceFieldPathRenderer; // for fRenderTarget (to query sRGB)

[jvanverth1, 2016/04/13 13:45:39]

This seems a little squirrely to me. Does it make sense to add an accessor
function that returns fRenderTarget->config() instead?

[Brian Osman, 2016/04/13 13:48:44]

Yes - I nearly added a comment before sending this out, because I didn't really
like this.

     friend class GrDrawingManager; // for resetFlag & TopoSortTraits
 
     enum Flags {