DCHECK tasks posted by TaskRunner::PostTask

chrome/browser/after_startup_task_utils.cc

Index: chrome/browser/after_startup_task_utils.cc
diff --git a/chrome/browser/after_startup_task_utils.cc b/chrome/browser/after_startup_task_utils.cc
index e024a945968ccb901ceabca657df8747f36288c3..bf39464e8eb3c74aa393e215aef3d59a7740300c 100644
--- a/chrome/browser/after_startup_task_utils.cc
+++ b/chrome/browser/after_startup_task_utils.cc
@@ -75,6 +75,9 @@ void ScheduleTask(std::unique_ptr<AfterStartupTask> queued_task) {
 }
 
 void QueueTask(std::unique_ptr<AfterStartupTask> queued_task) {
+  DCHECK(queued_task);
+  CHECK(queued_task->task);
+
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,