Nanobench running on Vulkan

tools/gpu/vk/VkTestContext.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 "VkTestContext.h"
 
 #ifdef SK_VULKAN
 
 namespace {
-// TODO: Implement fence syncs and swap buffers
+// TODO: Implement fence syncs, swap buffers, submit, and flush
 class VkTestContextImpl : public sk_gpu_test::VkTestContext {
 public:
     VkTestContextImpl()
         : VkTestContext(sk_sp<const GrVkBackendContext>(GrVkBackendContext::Create())) {}
 
     ~VkTestContextImpl() override { this->teardown(); }
 
     void testAbandon() override {}
 
+    void submit() override {}
+    void finish() override {}
+
 protected:
     void teardown() override { fVk.reset(nullptr); }
 
 private:
     void onPlatformMakeCurrent() const override {}
     void onPlatformSwapBuffers() const override {}
 
     typedef sk_gpu_test::VkTestContext INHERITED;
 };
 }
 
 namespace sk_gpu_test {
 VkTestContext* CreatePlatformVkTestContext() {
     return new VkTestContextImpl;
 }
 }  // namespace sk_gpu_test
 
 #endif