Added initial implementation of the Vulkan Context Provider.

cc/output/vulkan_in_process_context_provider.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 "cc/output/vulkan_in_process_context_provider.h"
+
+#include <vector>
+
+#include "gpu/vulkan/vulkan_device_queue.h"
+
+#if defined(VK_USE_PLATFORM_XLIB_KHR)
+#include "ui/gfx/x/x11_types.h"
+#endif  // defined(VK_USE_PLATFORM_XLIB_KHR)
+
+namespace cc {
+
+scoped_refptr<VulkanInProcessContextProvider>
+VulkanInProcessContextProvider::Create() {
+  scoped_refptr<VulkanInProcessContextProvider> context_provider(
+      new VulkanInProcessContextProvider);
+  if (!context_provider->Initialize())
+    return nullptr;
+  return context_provider;
+}
+
+bool VulkanInProcessContextProvider::Initialize() {
+  scoped_ptr<gpu::VulkanDeviceQueue> device_queue(new gpu::VulkanDeviceQueue);
+  if (device_queue->Initialize(
+          gpu::VulkanDeviceQueue::GRAPHICS_QUEUE_FLAG |
+          gpu::VulkanDeviceQueue::PRESENTATION_SUPPORT_QUEUE_FLAG)) {
+    device_queue_ = std::move(device_queue);
+    return true;
+  }
+
+  return false;
+}
+
+void VulkanInProcessContextProvider::Destroy() {
+  if (device_queue_) {
+    device_queue_->Destroy();
+    device_queue_.reset();
+  }
+}
+
+gpu::VulkanDeviceQueue* VulkanInProcessContextProvider::GetDeviceQueue() {
+  return device_queue_.get();
+}
+
+VulkanInProcessContextProvider::VulkanInProcessContextProvider() {}
+
+VulkanInProcessContextProvider::~VulkanInProcessContextProvider() {}
+
+}  // namespace cc