From da4381687dab93e90684e6c589dc75219525982c Mon Sep 17 00:00:00 2001
From: bechen <bechen@mozilla.com>
Date: Tue, 21 Feb 2017 15:44:10 +0800
Subject: [PATCH] Bug 1334112 -part3 : Trigger UpdateReadyState after unbind
 TrackElement's and TextTrack::SetReadyState. r=rillian

MozReview-Commit-ID: pEeOzZSpak

--HG--
extra : rebase_source : cf7759c746f3fa9221dcda03327fd6b3c5997ee7
---
 dom/html/HTMLTrackElement.cpp | 1 +
 dom/media/TextTrack.cpp       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/dom/html/HTMLTrackElement.cpp b/dom/html/HTMLTrackElement.cpp
index 758018f8d29f..1249b2e18212 100644
--- a/dom/html/HTMLTrackElement.cpp
+++ b/dom/html/HTMLTrackElement.cpp
@@ -392,6 +392,7 @@ HTMLTrackElement::UnbindFromTree(bool aDeep, bool aNullParent)
     // called.
     if (mTrack) {
       mMediaParent->RemoveTextTrack(mTrack);
+      mMediaParent->UpdateReadyState();
     }
     mMediaParent = nullptr;
   }
diff --git a/dom/media/TextTrack.cpp b/dom/media/TextTrack.cpp
index afc24ef1053d..72890bef1511 100644
--- a/dom/media/TextTrack.cpp
+++ b/dom/media/TextTrack.cpp
@@ -263,6 +263,7 @@ TextTrack::SetReadyState(TextTrackReadyState aState)
   if (mediaElement && (mReadyState == TextTrackReadyState::Loaded||
       mReadyState == TextTrackReadyState::FailedToLoad)) {
     mediaElement->RemoveTextTrack(this, true);
+    mediaElement->UpdateReadyState();
   }
 }