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/ops/GrDrawableOp.cpp b/src/gpu/ops/GrDrawableOp.cpp
index 1b0bbd2..834fedd 100644
--- a/src/gpu/ops/GrDrawableOp.cpp
+++ b/src/gpu/ops/GrDrawableOp.cpp
@@ -17,7 +17,7 @@
 std::unique_ptr<GrDrawableOp> GrDrawableOp::Make(
         GrContext* context, std::unique_ptr<SkDrawable::GpuDrawHandler> drawable,
         const SkRect& bounds) {
-    GrOpMemoryPool* pool = context->contextPriv().opMemoryPool();
+    GrOpMemoryPool* pool = context->priv().opMemoryPool();
     return pool->allocate<GrDrawableOp>(std::move(drawable), bounds);
 }