Added the Vulkan Context Provider implementation.

content/browser/browser_main_loop.cc

 // Copyright (c) 2012 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 "content/browser/browser_main_loop.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 167 matching lines @@
 
 #if defined(USE_NSS_CERTS)
 #include "crypto/nss_util.h"
 #endif
 
 #if defined(MOJO_SHELL_CLIENT)
 #include "services/shell/public/cpp/connector.h"
 #include "ui/views/mus/window_manager_connection.h"
 #endif
 
+#if defined(ENABLE_VULKAN)
+#include "gpu/vulkan/vulkan_implementation.h"
+#endif
+
 // One of the linux specific headers defines this as a macro.
 #ifdef DestroyAll
 #undef DestroyAll
 #endif
 
 namespace content {
 namespace {
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
 void SetupSandbox(const base::CommandLine& parsed_command_line) {
@@ skipping 983 matching lines @@
 
   indexed_db_thread_.reset(new base::Thread("IndexedDB"));
   indexed_db_thread_->Start();
 
   HistogramSynchronizer::GetInstance();
 #if defined(OS_ANDROID) || defined(OS_CHROMEOS)
   // Up the priority of the UI thread.
   base::PlatformThread::SetCurrentThreadPriority(base::ThreadPriority::DISPLAY);
 #endif
 
+#if defined(ENABLE_VULKAN)
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableVulkan)) {
+    gpu::InitializeVulkan();
+  }
+#endif
+
   bool always_uses_gpu = true;
   bool established_gpu_channel = false;
 #if defined(OS_ANDROID)
   // TODO(crbug.com/439322): This should be set to |true|.
   established_gpu_channel = false;
   BrowserGpuChannelHostFactory::Initialize(established_gpu_channel);
 #elif defined(USE_AURA) || defined(OS_MACOSX)
   established_gpu_channel = true;
   if (!GpuDataManagerImpl::GetInstance()->CanUseGpuBrowserCompositor() ||
       parsed_command_line_.HasSwitch(switches::kDisableGpuEarlyInit)) {
@@ skipping 279 matching lines @@
   audio_task_runner = audio_thread_->task_runner();
   worker_task_runner = audio_thread_->task_runner();
   monitor_task_runner = io_thread_->task_runner();
 #endif  // defined(OS_MACOSX)
   audio_manager_ = media::AudioManager::Create(
       std::move(audio_task_runner), std::move(worker_task_runner),
       std::move(monitor_task_runner), MediaInternals::GetInstance());
 }
 
 }  // namespace content