Add resource provider flag to avoid client-side buffers

src/gpu/instanced/GLInstancedRendering.h

Index: src/gpu/instanced/GLInstancedRendering.h
diff --git a/src/gpu/instanced/GLInstancedRendering.h b/src/gpu/instanced/GLInstancedRendering.h
index 569e6e316014b5597d0705f42e7feaa4966477ef..3b87b0485ac46d1ab99a3d2bdec7e9e8b06f6dc3 100644
--- a/src/gpu/instanced/GLInstancedRendering.h
+++ b/src/gpu/instanced/GLInstancedRendering.h
@@ -44,8 +44,8 @@ private:
     };
 
     GrGLuint                              fVertexArrayID;
-    SkAutoTUnref<GrGLBuffer>              fInstanceBuffer;
-    SkAutoTUnref<GrGLBuffer>              fDrawIndirectBuffer;
+    SkAutoTUnref<GrBuffer>                fInstanceBuffer;
+    SkAutoTUnref<GrBuffer>                fDrawIndirectBuffer;
     SkAutoSTMalloc<1024, GLDrawCmdInfo>   fGLDrawCmdsInfo;
     uint32_t                              fInstanceAttribsBufferUniqueId;
     int                                   fInstanceAttribsBaseInstance;