From d202501199f1a9144db918c8f1eab5518a60c6ab Mon Sep 17 00:00:00 2001
From: ulan <ulan@chromium.org>
Date: Thu, 2 Jul 2015 11:25:42 -0700
Subject: [PATCH] Fix data-race in default implementation of delayed task.

BUG=

Review URL: https://codereview.chromium.org/1222203003

Cr-Commit-Position: refs/heads/master@{#29458}
---
 src/libplatform/default-platform.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libplatform/default-platform.cc b/src/libplatform/default-platform.cc
index 2e13cc0904..b41c5852a8 100644
--- a/src/libplatform/default-platform.cc
+++ b/src/libplatform/default-platform.cc
@@ -149,6 +149,7 @@ void DefaultPlatform::CallOnForegroundThread(v8::Isolate* isolate, Task* task) {
 void DefaultPlatform::CallDelayedOnForegroundThread(Isolate* isolate,
                                                     Task* task,
                                                     double delay_in_seconds) {
+  base::LockGuard<base::Mutex> guard(&lock_);
   double deadline = MonotonicallyIncreasingTime() + delay_in_seconds;
   main_thread_delayed_queue_[isolate].push(std::make_pair(deadline, task));
 }