Adjust overflow menu width depending on content width.
Adjust overflow menu width depending on content width.

Closes #2249.

Change-Id: Ic4c5676857b9be8dcb492099bf45951ace1f5640

tvoli/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player