chrome/browser: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/local_discovery/privet_url_fetcher.cc

Index: chrome/browser/local_discovery/privet_url_fetcher.cc
diff --git a/chrome/browser/local_discovery/privet_url_fetcher.cc b/chrome/browser/local_discovery/privet_url_fetcher.cc
index 96726df3f23cfaff68c2a3ebac41e81a3572bcad..390fb8350425fcddb07cfe50a48d5b6029d2151d 100644
--- a/chrome/browser/local_discovery/privet_url_fetcher.cc
+++ b/chrome/browser/local_discovery/privet_url_fetcher.cc
@@ -8,10 +8,12 @@
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
+#include "base/location.h"
 #include "base/memory/singleton.h"
-#include "base/message_loop/message_loop.h"
 #include "base/rand_util.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/local_discovery/privet_constants.h"
 #include "content/public/browser/browser_thread.h"
@@ -349,9 +351,8 @@ void PrivetURLFetcher::ScheduleRetry(int timeout_seconds) {
   timeout_seconds_randomized =
       std::max(timeout_seconds_randomized, kPrivetMinimumTimeout);
 
-  base::MessageLoop::current()->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&PrivetURLFetcher::Try, weak_factory_.GetWeakPtr()),
+  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+      FROM_HERE, base::Bind(&PrivetURLFetcher::Try, weak_factory_.GetWeakPtr()),
       base::TimeDelta::FromSeconds(timeout_seconds_randomized));
 }