Add MimeTypes.

Add many popular mimetypes, let gecko can recognise
more media container.

Signed-off-by: Yunchao Chen <chenyc@infthink.com>
Use gecko's own media engine to playback webm.

It has a issue with stagefright to playback webm, some crashes in
stagefright relative libraries, but do not have soure code.

Signed-off-by: Yunchao Chen <chenyc@infthink.com>
Merge pull request #1 from ooxff/ooxff-master

Add mimetype and enable gecko webm playback.