mozilla/pdf.js — pull request #2510 by Snuffleupagus (2012-12-27 20:41:05+00:00)
Title: Add word wrap of text in the Outline view to avoid horizontal scrolling

This patch attempts to reduce/remove the need for horizontal scrolling of the outline view by wrapping long lines.
In my testing it works really well, but it might cause problems in situations that I cannot test. (For instance I don't know if this works in RTL languages.)