Maintain the seek position in HTML5 video

Receive the current seek position from native when we start
playing a video. That way is we are returning from pause we correctly
continue where we left off.

Requires and external/webkit change.
(I6001f45a362f491e9040c8b52260d0a08fb8504f)

Bug:3303721
Change-Id: I6b92289d4ef36bba1e0429327917533a4101655d
1 file changed