Summary:
Depends on D19238. Ref T13105. Give document engines some reasonable automatic support for degrading gracefully when someone tries to hexdump a 100MB file or similar.
Also, make "Video" sort above "Audio" for files which could be rendered either way.
Test Plan: Viewed audio, video, image, and other files. Adjusted limits and saw full, partial, and fallback/error rendering.
Maniphest Tasks: T13105
Differential Revision: https://secure.phabricator.com/D19239
Summary: Depends on D19237. Ref T13105. This adds a (very basic) "Hexdump" engine (mostly just to have a second option to switch to) and a selector for choosing view modes.
Test Plan: Viewed some files, switched between audio/video/image/hexdump.
Maniphest Tasks: T13105
Differential Revision: https://secure.phabricator.com/D19238