Add WSI functions to GrVkInterface

src/gpu/vk/GrVkBuffer.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrVkBuffer_DEFINED
 #define GrVkBuffer_DEFINED
 
-#include "vk/GrVkInterface.h"
 #include "GrVkResource.h"
+#include "vk/GrVkDefines.h"
 
 class GrVkGpu;
 
 /**
  * This class serves as the base of GrVk*Buffer classes. It was written to avoid code
  * duplication in those classes.
  */
 class GrVkBuffer : public SkNoncopyable {
 public:
     ~GrVkBuffer() {
@@ skipping 56 matching lines @@
     void vkRelease(const GrVkGpu* gpu);
 
 private:
     void validate() const;
     bool vkIsMapped() const;
 
     Desc                    fDesc;
     const Resource*         fResource;
     void*                   fMapPtr;
 
-    typedef SkRefCnt INHERITED;
+    typedef SkNoncopyable INHERITED;
 };
 
 #endif