Added the Vulkan Context Provider implementation.

gpu/vulkan/tests/vulkan_tests_main.cc

 // 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.
 
 #include "base/command_line.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "base/test/test_suite.h"
-#include "gpu/vulkan/vulkan_surface.h"
+#include "gpu/vulkan/vulkan_implementation.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace {
 
 int RunHelper(base::TestSuite* testSuite) {
-  const bool success = gpu::VulkanSurface::InitializeOneOff();
+  const bool success = gpu::InitializeVulkan();
   DCHECK(success);
   return testSuite->Run();
 }
 
 }  // namespace
 
 int main(int argc, char** argv) {
   base::TestSuite test_suite(argc, argv);
   base::CommandLine::Init(argc, argv);
   testing::InitGoogleMock(&argc, argv);
   return base::LaunchUnitTestsSerially(
       argc, argv, base::Bind(&RunHelper, base::Unretained(&test_suite)));
 }