Remove calls to deprecated MessageLoop methods on Windows and Linux.

net/tools/get_server_time/get_server_time.cc

Index: net/tools/get_server_time/get_server_time.cc
diff --git a/net/tools/get_server_time/get_server_time.cc b/net/tools/get_server_time/get_server_time.cc
index 6bb3471d1626c38edc98dee082f10376b59fb614..ec30690f020e6cc3ee48c6d55bfc49ddd8e767c8 100644
--- a/net/tools/get_server_time/get_server_time.cc
+++ b/net/tools/get_server_time/get_server_time.cc
@@ -25,6 +25,7 @@
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ -252,7 +253,7 @@ int main(int argc, char* argv[]) {
       start_ticks.ToInternalValue());
 
   // |delegate| quits |main_loop| when the request is done.
-  main_loop.Run();
+  base::RunLoop().Run();
 
   const base::Time end_time = base::Time::Now();
   const base::TimeTicks end_ticks = base::TimeTicks::Now();