mozilla-beta: changeset 450291:72b59b20a04812e8f0b80bc27df09ebe0f884982

author	JW Wang <jwwang@mozilla.com>
	Tue, 09 Jan 2018 17:49:53 +0800
changeset 450291	72b59b20a04812e8f0b80bc27df09ebe0f884982
parent 450290	9a6c837be3b44d1fa175b0f00bb405d56ee2960a
child 450292	0b7db28533066166b0a16f787269b5bfbe685869
push id	8527
push user	Callek@gmail.com
push date	Thu, 11 Jan 2018 21:05:50 +0000
treeherder	mozilla-beta@95342d212a7a [default view] [failures only]
perfherder	[talos] [build metrics] [platform microbench] (compared to previous push)
reviewers	bechen, gerald
bugs	1429009
milestone	59.0a1
first release with	nightly linux32 4db166f0442d / 59.0a1 / 20180110221942 / files nightly linux64 4db166f0442d / 59.0a1 / 20180110221942 / files nightly mac 4db166f0442d / 59.0a1 / 20180110221942 / files nightly win32 4db166f0442d / 59.0a1 / 20180110221942 / files nightly win64 4db166f0442d / 59.0a1 / 20180110221942 / files
last release without	nightly linux32 e4de69553e3f / 59.0a1 / 20180109234707 / files nightly linux64 e4de69553e3f / 59.0a1 / 20180109234707 / files nightly mac e4de69553e3f / 59.0a1 / 20180109234707 / files nightly win32 e4de69553e3f / 59.0a1 / 20180109234707 / files nightly win64 e4de69553e3f / 59.0a1 / 20180109234707 / files

--- a/dom/media/ChannelMediaDecoder.cpp
+++ b/dom/media/ChannelMediaDecoder.cpp
@@ -434,17 +434,16 @@ ChannelMediaDecoder::DownloadProgressed(
       __func__,
       [ =, self = RefPtr<ChannelMediaDecoder>(this) ](MediaStatistics aStats) {
         if (IsShutdown()) {
           return;
         }
         mCanPlayThrough = aStats.CanPlayThrough();
         GetStateMachine()->DispatchCanPlayThrough(mCanPlayThrough);
         mResource->ThrottleReadahead(ShouldThrottleDownload(aStats));
-        AbstractThread::AutoEnter context(AbstractMainThread());
         // Update readyState since mCanPlayThrough might have changed.
         GetOwner()->UpdateReadyState();
       },
       []() { MOZ_ASSERT_UNREACHABLE("Promise not resolved"); });
 }
 
 /* static */ ChannelMediaDecoder::PlaybackRateInfo
 ChannelMediaDecoder::ComputePlaybackRate(const MediaChannelStatistics& aStats,