Remove accessRenderTarget calls in service of binding stencil buffer

Change-Id: Ifca6e21c619a0433ecf0b8699d92661f8c3068a8
Reviewed-on: https://skia-review.googlesource.com/31243
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/include/private/GrSurfaceProxy.h b/include/private/GrSurfaceProxy.h
index efd078a..21438f6 100644
--- a/include/private/GrSurfaceProxy.h
+++ b/include/private/GrSurfaceProxy.h
@@ -372,11 +372,11 @@
     virtual sk_sp<GrSurface> createSurface(GrResourceProvider*) const = 0;
     void assign(sk_sp<GrSurface> surface);
 
-    sk_sp<GrSurface> createSurfaceImpl(GrResourceProvider*, int sampleCnt,
+    sk_sp<GrSurface> createSurfaceImpl(GrResourceProvider*, int sampleCnt, bool needsStencil,
                                        GrSurfaceFlags flags, bool isMipMapped,
                                        SkDestinationSurfaceColorMode mipColorMode) const;
 
-    bool instantiateImpl(GrResourceProvider* resourceProvider, int sampleCnt,
+    bool instantiateImpl(GrResourceProvider* resourceProvider, int sampleCnt, bool needsStencil,
                          GrSurfaceFlags flags, bool isMipMapped,
                          SkDestinationSurfaceColorMode mipColorMode);