Add WSI functions to GrVkInterface

src/gpu/vk/GrVkCommandBuffer.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 GrVkCommandBuffer_DEFINED
 #define GrVkCommandBuffer_DEFINED
 
 #include "GrVkGpu.h"
 #include "GrVkResource.h"
 #include "GrVkUtil.h"
-#include "vulkan/vulkan.h"
+#include "vk/GrVkDefines.h"
 
 class GrVkPipeline;
 class GrVkRenderPass;
 class GrVkRenderTarget;
 class GrVkTransferBuffer;
 
 class GrVkCommandBuffer : public GrVkResource {
 public:
     static GrVkCommandBuffer* Create(const GrVkGpu* gpu, VkCommandPool cmdPool);
     ~GrVkCommandBuffer() override;
@@ skipping 182 matching lines @@
 
     // Cached values used for dynamic state updates
     VkViewport fCachedViewport;
     VkRect2D   fCachedScissor;
     float      fCachedBlendConstant[4];
 };
 
 
 #endif