Gamma-correctness pushed into Skia, top-down.

src/gpu/GrDrawContext.cpp

Index: src/gpu/GrDrawContext.cpp
diff --git a/src/gpu/GrDrawContext.cpp b/src/gpu/GrDrawContext.cpp
index 9110b34d6f38be969a62d637fedbed0e8e28f36e..37e42ff2440ffabd4cb5c393345056dffd0f6f9c 100644
--- a/src/gpu/GrDrawContext.cpp
+++ b/src/gpu/GrDrawContext.cpp
@@ -386,6 +386,7 @@ bool GrDrawContextPriv::drawAndStencilRect(const SkIRect* scissorRect,
     AutoCheckFlush acf(fDrawContext->fDrawingManager);
 
     GrPaint paint;
+    // SRGBTODO: AllowSRGBInputs?
     paint.setAntiAlias(doAA);
     paint.setCoverageSetOpXPFactory(op, invert);
 
@@ -901,6 +902,7 @@ bool GrDrawContextPriv::drawAndStencilPath(const SkIRect* scissorRect,
     }
 
     GrPaint paint;
+    // SRGBTODO: AllowSRGBInputs?
     paint.setCoverageSetOpXPFactory(op, invert);
 
     // TODO: it is unfortunate that we have to convert this to a GrClip to