Added the Vulkan Context Provider implementation.

cc/BUILD.gn

 # Copyright 2014 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")
 import("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
@@ skipping 550 matching lines @@
   defines = [ "CC_IMPLEMENTATION=1" ]
 
   if (!is_debug && (is_win || is_android)) {
     configs -= [ "//build/config/compiler:default_optimization" ]
     configs += [ "//build/config/compiler:optimize_max" ]
   }
 
   if (enable_vulkan) {
     sources += [
       "output/vulkan_context_provider.h",
+      "output/vulkan_derived_context_provider.cc",
+      "output/vulkan_derived_context_provider.h",
       "output/vulkan_in_process_context_provider.cc",
       "output/vulkan_in_process_context_provider.h",
       "output/vulkan_renderer.cc",
       "output/vulkan_renderer.h",
     ]
 
     deps += [ "//gpu/vulkan" ]
   }
 }
 
@@ skipping 421 matching lines @@
     "//ui/gl",
     "//ui/gl:test_support",
   ]
 
   if (is_android) {
     isolate_file = "cc_perftests.isolate"
   }
 }
 # When adding support for isolates, please have a look at run-time dependencies
 # in the cc_unittests_run target in cc_tests.gyp.