chore(Queue): Improve the QueueManager code

[avelad]

No description provided.

[shaka-bot]

Bundle Size Report for PR #9620

File	HEAD	Base	Diff
build_state.json	0.8 KiB (0.5 KiB)	0.8 KiB (0.5 KiB)	0.0 KiB
controls.css	21.8 KiB (4.7 KiB)	21.8 KiB (4.7 KiB)	0.0 KiB
demo.compiled.debug.js	239.3 KiB (48.2 KiB)	239.3 KiB (48.2 KiB)	0.0 KiB
demo.compiled.js	239.3 KiB (48.2 KiB)	239.3 KiB (48.2 KiB)	0.0 KiB
demo.css	169.9 KiB (27.7 KiB)	169.9 KiB (27.7 KiB)	0.0 KiB
locales.js	42.6 KiB (10.6 KiB)	42.6 KiB (10.6 KiB)	0.0 KiB
receiver.compiled.debug.js	143.2 KiB (23.8 KiB)	143.2 KiB (23.8 KiB)	0.0 KiB
receiver.compiled.js	143.2 KiB (23.8 KiB)	143.2 KiB (23.8 KiB)	0.0 KiB
shaka-player.compiled.debug.js	1484.8 KiB (338.9 KiB)	1483.0 KiB (338.6 KiB)	+1.9 KiB
shaka-player.compiled.js	744.0 KiB (240.5 KiB)	743.2 KiB (240.3 KiB)	+0.8 KiB
shaka-player.dash.debug.js	1085.8 KiB (253.3 KiB)	1085.8 KiB (253.3 KiB)	+0.0 KiB
shaka-player.dash.js	511.7 KiB (169.3 KiB)	511.7 KiB (169.3 KiB)	0.0 KiB
shaka-player.experimental.debug.js	1873.0 KiB (418.9 KiB)	1871.1 KiB (418.6 KiB)	+1.9 KiB
shaka-player.experimental.js	983.7 KiB (305.1 KiB)	982.9 KiB (304.9 KiB)	+0.8 KiB
shaka-player.hls.debug.js	1122.8 KiB (259.5 KiB)	1122.8 KiB (259.5 KiB)	+0.0 KiB
shaka-player.hls.js	549.6 KiB (180.8 KiB)	549.6 KiB (180.8 KiB)	0.0 KiB
shaka-player.ui.debug.js	1811.9 KiB (405.8 KiB)	1810.0 KiB (405.6 KiB)	+1.9 KiB
shaka-player.ui.js	957.2 KiB (297.0 KiB)	956.4 KiB (296.8 KiB)	+0.8 KiB

[shaka-bot]

Incremental code coverage: 88.67%