1 files changed, 6 insertions, 8 deletions

diff --git a/chromium/base/message_loop/incoming_task_queue.h b/chromium/base/message_loop/incoming_task_queue.h
index 861f0fc1796..f158d2a93ff 100644
--- a/chromium/base/message_loop/incoming_task_queue.h
+++ b/chromium/base/message_loop/incoming_task_queue.h
@@ -77,9 +77,6 @@ class BASE_EXPORT IncomingTaskQueue
                           TimeDelta delay,
                           Nestable nestable);
 
-  // Returns true if the message loop is "idle". Provided for testing.
-  bool IsIdleForTesting();
-
   // Disconnects |this| from the parent message loop.
   void WillDestroyCurrentMessageLoop();
 
@@ -109,8 +106,9 @@ class BASE_EXPORT IncomingTaskQueue
   // maintaining three queue queues to process tasks:
   //
   // TriageQueue
-  // The first queue to receive all tasks for the processing sequence. Tasks are
-  // generally either dispatched immediately or sent to the queues below.
+  // The first queue to receive all tasks for the processing sequence (when
+  // reloading from the thread-safe |incoming_queue_|). Tasks are generally
+  // either dispatched immediately or sent to the queues below.
   //
   // DelayedQueue
   // The queue for holding tasks that should be run later and sorted by expected
@@ -226,8 +224,8 @@ class BASE_EXPORT IncomingTaskQueue
   // Number of high resolution tasks in the sequence affine queues above.
   int pending_high_res_tasks_ = 0;
 
-  // Lock that protects |message_loop_| to prevent it from being deleted while
-  // a request is made to schedule work.
+  // Lock that serializes |message_loop_->ScheduleWork()| calls as well as
+  // prevents |message_loop_| from being made nullptr during such a call.
   base::Lock message_loop_lock_;
 
   // Points to the message loop that owns |this|.
@@ -242,7 +240,7 @@ class BASE_EXPORT IncomingTaskQueue
 
   // An incoming queue of tasks that are acquired under a mutex for processing
   // on this instance's thread. These tasks have not yet been been pushed to
-  // |message_loop_|.
+  // |triage_tasks_|.
   TaskQueue incoming_queue_;
 
   // True if new tasks should be accepted.