Add OpenGL context to Viewer.

tools/viewer/sk_app/win/VulkanWindowContext_win.cpp

 
 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include "VulkanWindowContext_win.h"
+#include "../VulkanWindowContext.h"
+#include "Window_win.h"
 
 #include "vk/GrVkInterface.h"
 #include "vk/GrVkUtil.h"
 
 namespace sk_app {
 
 // Platform dependant call
 VkSurfaceKHR VulkanWindowContext::createVkSurface(VkInstance instance, void* platformData) {
     static PFN_vkCreateWin32SurfaceKHR createWin32SurfaceKHR = nullptr;
     if (!createWin32SurfaceKHR) {
@@ skipping 33 matching lines @@
         getPhysicalDeviceWin32PresentationSupportKHR =
             (PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR) vkGetInstanceProcAddr(instance,
                                                  "vkGetPhysicalDeviceWin32PresentationSupportKHR");
     }
 
     VkBool32 check = getPhysicalDeviceWin32PresentationSupportKHR(physDev, queueFamilyIndex);
     return (VK_FALSE != check);
 }
 
 }   // namespace sk_app