Revert of Add vulkan files into skia repo.

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"
-
-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() {
-        // either release or abandon should have been called by the owner of this object.
-        SkASSERT(!fResource);
-    }
-
-    VkBuffer       buffer() const { return fResource->fBuffer; }
-    VkDeviceMemory alloc() const { return fResource->fAlloc; }
-    const GrVkResource* resource() const { return fResource; }
-    size_t         size() const { return fDesc.fSizeInBytes; }
-
-    void addMemoryBarrier(const GrVkGpu* gpu,
-                          VkAccessFlags srcAccessMask,
-                          VkAccessFlags dstAccessMask,
-                          VkPipelineStageFlags srcStageMask,
-                          VkPipelineStageFlags dstStageMask,
-                          bool byRegion) const;
-
-    enum Type {
-        kVertex_Type,
-        kIndex_Type,
-        kUniform_Type,
-        kCopyRead_Type,
-        kCopyWrite_Type,
-    };
-
-protected:
-    struct Desc {
-        size_t      fSizeInBytes;
-        Type        fType;         // vertex buffer, index buffer, etc.
-        bool        fDynamic;
-    };
-
-    class Resource : public GrVkResource {
-    public:
-        Resource(VkBuffer buf, VkDeviceMemory alloc) : INHERITED(), fBuffer(buf), fAlloc(alloc) {}
-
-        VkBuffer fBuffer;
-        VkDeviceMemory fAlloc;
-    private:
-        void freeGPUData(const GrVkGpu* gpu) const;
-
-        typedef GrVkResource INHERITED;
-    };
-
-    // convenience routine for raw buffer creation
-    static const Resource* Create(const GrVkGpu* gpu,
-                                  const Desc& descriptor);
-
-    GrVkBuffer(const Desc& desc, const GrVkBuffer::Resource* resource)
-        : fDesc(desc), fResource(resource), fMapPtr(nullptr) {
-    }
-
-    void* vkMap(const GrVkGpu* gpu);
-    void vkUnmap(const GrVkGpu* gpu);
-    bool vkUpdateData(const GrVkGpu* gpu, const void* src, size_t srcSizeInBytes);
-
-    void vkAbandon();
-    void vkRelease(const GrVkGpu* gpu);
-
-private:
-    void validate() const;
-    bool vkIsMapped() const;
-
-    Desc                    fDesc;
-    const Resource*         fResource;
-    void*                   fMapPtr;
-
-    typedef SkRefCnt INHERITED;
-};
-
-#endif