mozilla/pdf.js — pull request #3801 by Rob--W (2013-10-13 11:11:51+00:00)
Title: chrome.extension -> chrome.runtime for Ubuntu

Addresses issue #3800, where a bug specific to Ubuntu builds of Chromium break PDF.js.
https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1232575

The fix is already published in the Chrome web store.