Roll ffmpeg DEPS to 76055
Roll ffmpeg DEPS to 76055

TEST=none
BUG=69218
TBR=scherkus

git-svn-id: http://src.chromium.org/svn/trunk/src@76058 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 2ba57425387d2a9fa3c0d80753d9a79d55a04ffe
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser