Rename GrContext::contextPriv to priv

Mechanical. This makes the priv() accessor the same for all the context types.

Change-Id: I40850eb05a33b8d7cc3eabdd42226d24b2ba58aa
Reviewed-on: https://skia-review.googlesource.com/c/189164
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/SkGpuDevice_drawTexture.cpp b/src/gpu/SkGpuDevice_drawTexture.cpp
index 2ce46ec..63ab4f9 100644
--- a/src/gpu/SkGpuDevice_drawTexture.cpp
+++ b/src/gpu/SkGpuDevice_drawTexture.cpp
@@ -251,7 +251,7 @@
     bool doBicubic;
     GrSamplerState::Filter fm = GrSkFilterQualityToGrFilterMode(
             paint.getFilterQuality(), viewMatrix, srcToDstMatrix,
-            fContext->contextPriv().options().fSharpenMipmappedTextures, &doBicubic);
+            fContext->priv().options().fSharpenMipmappedTextures, &doBicubic);
     const GrSamplerState::Filter* filterMode = doBicubic ? nullptr : &fm;
 
     GrTextureProducer::FilterConstraint constraintMode;