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/GrSurfaceProxy.cpp b/src/gpu/GrSurfaceProxy.cpp
index 8b1bce4..6051f51 100644
--- a/src/gpu/GrSurfaceProxy.cpp
+++ b/src/gpu/GrSurfaceProxy.cpp
@@ -353,7 +353,7 @@
         return nullptr;
     }
 
-    sk_sp<GrSurfaceContext> dstContext(context->contextPriv().makeDeferredSurfaceContext(
+    sk_sp<GrSurfaceContext> dstContext(context->priv().makeDeferredSurfaceContext(
             format, dstDesc, src->origin(), mipMapped, fit, budgeted));
     if (!dstContext) {
         return nullptr;
@@ -383,7 +383,7 @@
         return nullptr;
     }
 
-    sk_sp<GrSurfaceContext> dstContext(context->contextPriv().makeDeferredSurfaceContext(
+    sk_sp<GrSurfaceContext> dstContext(context->priv().makeDeferredSurfaceContext(
             format, dstDesc, origin, GrMipMapped::kNo, SkBackingFit::kExact, SkBudgeted::kYes));
     if (!dstContext) {
         return nullptr;