Make GrSamplerState.h and GrRenderTarget.h private

Change-Id: Id7a270f5a528e1a4a6d94474fa092545252753b3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/234667
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrProxyProvider.cpp b/src/gpu/GrProxyProvider.cpp
index e187448..82266b1 100644
--- a/src/gpu/GrProxyProvider.cpp
+++ b/src/gpu/GrProxyProvider.cpp
@@ -10,7 +10,6 @@
 #include "include/core/SkBitmap.h"
 #include "include/core/SkImage.h"
 #include "include/gpu/GrContext.h"
-#include "include/gpu/GrRenderTarget.h"
 #include "include/gpu/GrTexture.h"
 #include "include/private/GrImageContext.h"
 #include "include/private/GrResourceKey.h"
@@ -23,6 +22,7 @@
 #include "src/gpu/GrCaps.h"
 #include "src/gpu/GrContextPriv.h"
 #include "src/gpu/GrImageContextPriv.h"
+#include "src/gpu/GrRenderTarget.h"
 #include "src/gpu/GrResourceProvider.h"
 #include "src/gpu/GrSurfaceProxy.h"
 #include "src/gpu/GrSurfaceProxyPriv.h"