Changed GpuVSyncProvider to implement gfx::VSyncProvider

gpu/ipc/service/gpu_vsync_provider_posix.cc

Index: gpu/ipc/service/gpu_vsync_provider_posix.cc
diff --git a/gpu/ipc/service/gpu_vsync_provider_posix.cc b/gpu/ipc/service/gpu_vsync_provider_posix.cc
deleted file mode 100644
index 00039f65023696e22389a0623768961f920387ed..0000000000000000000000000000000000000000
--- a/gpu/ipc/service/gpu_vsync_provider_posix.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// 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 "gpu/ipc/service/gpu_vsync_provider.h"
-
-namespace gpu {
-
-/* static */
-std::unique_ptr<GpuVSyncProvider> GpuVSyncProvider::Create(
-    const VSyncCallback& callback,
-    SurfaceHandle surface_handle) {
-  return std::unique_ptr<GpuVSyncProvider>();
-}
-
-GpuVSyncProvider::~GpuVSyncProvider() = default;
-
-void GpuVSyncProvider::EnableVSync(bool enabled) {
-  NOTREACHED();
-}
-
-}  // namespace gpu