Introduce Android WSI extension for Vulkan.

gpu/vulkan/vulkan_platform.h

 // Copyright 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.
 
 // This file is used so we only include platform specific headers when
 // necessary. Otherwise some headers such as for X11 define extra macros which
 // can conflict with other headers.
 
 #ifndef GPU_VULKAN_VULKAN_H_
 #define GPU_VULKAN_VULKAN_H_
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #if defined(USE_X11)
 #define VK_USE_PLATFORM_XLIB_KHR
 #endif
 
+#if defined(OS_ANDROID)
+#define VK_USE_PLATFORM_ANDROID_KHR
+#endif
+
 // This section below is taken from <vulkan/vulkan.h>
 #ifdef VK_USE_PLATFORM_XLIB_KHR
 #define VK_KHR_xlib_surface 1
 #include <X11/Xlib.h>
 
 #define VK_KHR_XLIB_SURFACE_SPEC_VERSION 6
 #define VK_KHR_XLIB_SURFACE_EXTENSION_NAME "VK_KHR_xlib_surface"
 
 typedef VkFlags VkXlibSurfaceCreateFlagsKHR;
 
@@ skipping 24 matching lines @@
                        VkSurfaceKHR* pSurface);
 
 VKAPI_ATTR VkBool32 VKAPI_CALL
 vkGetPhysicalDeviceXlibPresentationSupportKHR(VkPhysicalDevice physicalDevice,
                                               uint32_t queueFamilyIndex,
                                               Display* dpy,
                                               VisualID visualID);
 #endif
 #endif /* VK_USE_PLATFORM_XLIB_KHR */
 
+#ifdef VK_USE_PLATFORM_ANDROID_KHR
+#define VK_KHR_android_surface 1
+#include <android/native_window.h>
+
+#define VK_KHR_ANDROID_SURFACE_SPEC_VERSION 6
+#define VK_KHR_ANDROID_SURFACE_EXTENSION_NAME "VK_KHR_android_surface"
+
+typedef VkFlags VkAndroidSurfaceCreateFlagsKHR;
+
+typedef struct VkAndroidSurfaceCreateInfoKHR {
+  VkStructureType sType;
+  const void* pNext;
+  VkAndroidSurfaceCreateFlagsKHR flags;
+  ANativeWindow* window;
+} VkAndroidSurfaceCreateInfoKHR;
+
+typedef VkResult(VKAPI_PTR* PFN_vkCreateAndroidSurfaceKHR)(
+    VkInstance instance,
+    const VkAndroidSurfaceCreateInfoKHR* pCreateInfo,
+    const VkAllocationCallbacks* pAllocator,
+    VkSurfaceKHR* pSurface);
+
+#ifndef VK_NO_PROTOTYPES
+VKAPI_ATTR VkResult VKAPI_CALL
+vkCreateAndroidSurfaceKHR(VkInstance instance,
+                          const VkAndroidSurfaceCreateInfoKHR* pCreateInfo,
+                          const VkAllocationCallbacks* pAllocator,
+                          VkSurfaceKHR* pSurface);
+#endif
+#endif /* VK_USE_PLATFORM_ANDROID_KHR */
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // GPU_VULKAN_VULKAN_H_