Added initial implementation of the Vulkan Context Provider.

gpu/vulkan/vulkan_image_view.h

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef GPU_VULKAN_VULKAN_IMAGE_VIEW_H_
 #define GPU_VULKAN_VULKAN_IMAGE_VIEW_H_
 
 #include <vulkan/vulkan.h>
 
 #include "base/macros.h"
 
 namespace gpu {
 
+class VulkanDeviceQueue;
+
 class VulkanImageView {
  public:
   enum ImageType {
     IMAGE_TYPE_COLOR,
     IMAGE_TYPE_DEPTH,
     IMAGE_TYPE_STENCIL,
     IMAGE_TYPE_DEPTH_STENCIL,
 
     NUM_IMAGE_TYPES,
     IMAGE_TYPE_INVALID = -1,
   };
 
-  VulkanImageView();
+  explicit VulkanImageView(VulkanDeviceQueue* device_queue);
   ~VulkanImageView();
 
   bool Initialize(VkImage image,
                   VkImageViewType image_view_type,
                   ImageType image_type,
                   VkFormat format,
                   uint32_t width,
                   uint32_t height,
                   uint32_t base_mip_level,
                   uint32_t num_mips,
                   uint32_t base_layer_level,
                   uint32_t num_layers);
   void Destroy();
 
   ImageType image_type() const { return image_type_; }
   VkImageView handle() const { return handle_; }
   VkFormat format() const { return format_; }
   uint32_t width() const { return width_; }
   uint32_t height() const { return height_; }
   uint32_t mips() const { return mips_; }
   uint32_t layers() const { return layers_; }
 
  private:
+  VulkanDeviceQueue* device_queue_ = nullptr;
   ImageType image_type_ = IMAGE_TYPE_INVALID;
   VkImageView handle_ = VK_NULL_HANDLE;
   VkFormat format_ = VK_FORMAT_UNDEFINED;
   uint32_t width_ = 0;
   uint32_t height_ = 0;
   uint32_t mips_ = 0;
   uint32_t layers_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(VulkanImageView);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_VULKAN_VULKAN_IMAGE_VIEW_H_