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/GrBitmapTextureMaker.cpp b/src/gpu/GrBitmapTextureMaker.cpp
index 291d6b1..95f1c84 100644
--- a/src/gpu/GrBitmapTextureMaker.cpp
+++ b/src/gpu/GrBitmapTextureMaker.cpp
@@ -36,7 +36,7 @@
         return nullptr;
     }
 
-    GrProxyProvider* proxyProvider = this->context()->contextPriv().proxyProvider();
+    GrProxyProvider* proxyProvider = this->context()->priv().proxyProvider();
     sk_sp<GrTextureProxy> proxy;
 
     if (fOriginalKey.isValid()) {