Added initial implementation of Vulkan Render Passes.

gpu/vulkan/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 
 config("vulkan_config") {
   defines = [ "ENABLE_VULKAN" ]
   if (use_x11) {
     defines += [ "VK_USE_PLATFORM_XLIB_KHR" ]
   }
 }
 
 component("vulkan") {
   output_name = "vulkan_wrapper"
 
   if (is_linux && enable_vulkan) {
     assert(use_x11, "Vulkan only support x11 at this point.")
     sources = [
+      "vulkan_command_buffer.cc",
+      "vulkan_command_buffer.h",
       "vulkan_export.h",
       "vulkan_implementation.cc",
       "vulkan_implementation.h",
       "vulkan_surface.cc",
       "vulkan_surface.h",
+      "vulkan_swap_chain.cc",
+      "vulkan_swap_chain.h",
     ]
 
     configs += [ "//build/config:precompiled_headers" ]
     defines = [ "VULKAN_IMPLEMENTATION" ]
 
     all_dependent_configs = [ ":vulkan_config" ]
     libs = [ "vulkan" ]
 
     include_dirs = [ "/usr/include" ]
     if (target_cpu == "x64") {
       lib_dirs = [ "/usr/lib/x86_64-linux-gnu" ]
     } else {
       assert(false, "Unsupported vulkan target: " + target_cpu)
     }
 
     deps = [
       "//base",
       "//ui/base",
       "//ui/gfx",
     ]
 
     if (use_x11) {
       deps += [ "//ui/gfx/x" ]
       configs += [ "//build/config/linux:x11" ]
     }
   }
 }