Android native browser ending playback after 1 second

On my android 4.3 phone (using native browser. Issue not present on
firefox or chrome apps) video duration seems to be set to precisely
1 from the metadataloaded event. There was an existing check there
for android 4.0, which appearently wasn't sufficient. My phone
is 4.3 and issue is present. Googling suggests the bug is on versions
prior to 4 too.

Follow approach based on upstream to only update duration if
needed. In theory we should always be getting it from the server
(via data-duration) anyways.

See https://github.com/kaltura/mwEmbed/blob/master/modules/EmbedPlayer/resources/mw.EmbedPlayerNative.js#L1285

Bug: 43748
Change-Id: Icc6f756ed6be89f92016a23195373f81fd5cffb7
Merge "Android native browser ending playback after 1 second"