Add UMA for High Resolution Timer Usage

components/nacl/loader/nacl_main.cc

Index: components/nacl/loader/nacl_main.cc
diff --git a/components/nacl/loader/nacl_main.cc b/components/nacl/loader/nacl_main.cc
index 64a4f9e59c12d9a88e59613046081ad5b77fff7a..3934f48136edafc25d63347451f309d5863f9940 100644
--- a/components/nacl/loader/nacl_main.cc
+++ b/components/nacl/loader/nacl_main.cc
@@ -8,6 +8,7 @@
 #include "base/message_loop/message_loop.h"
 #include "base/power_monitor/power_monitor.h"
 #include "base/power_monitor/power_monitor_device_source.h"
+#include "base/task_scheduler/task_scheduler.h"
 #include "base/timer/hi_res_timer_manager.h"
 #include "build/build_config.h"
 #include "components/nacl/loader/nacl_listener.h"
@@ -27,6 +28,8 @@ int NaClMain(const content::MainFunctionParams& parameters) {
   base::MessageLoopForIO main_message_loop;
   base::PlatformThread::SetName("CrNaClMain");
 
+  base::TaskScheduler::CreateAndStartWithDefaultParams("NaCl");
+
   std::unique_ptr<base::PowerMonitorSource> power_monitor_source(
       new base::PowerMonitorDeviceSource());
   base::PowerMonitor power_monitor(std::move(power_monitor_source));