Implement GpuArcVideoService for arc video accelerator

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.cc
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
index 3c83155e850f71a8c00651e1626824339a8617eb..d9004239647c46571e974d418897336279c24918 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
@@ -120,6 +120,7 @@
 #include "components/user_manager/user.h"
 #include "components/user_manager/user_manager.h"
 #include "components/wallpaper/wallpaper_manager_base.h"
+#include "content/browser/gpu/gpu_arc_video_service_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/common/content_switches.h"
@@ -394,6 +395,11 @@ void ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun() {
 
   chromeos::ResourceReporter::GetInstance()->StartMonitoring();
 
+  gpu_arc_video_service_host_.reset(new content::GpuArcVideoServiceHost(
+      content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::IO)));
+  gpu_arc_video_service_host_->Initialize();
+
   ChromeBrowserMainPartsLinux::PreMainMessageLoopRun();
 }