install-build-deps.sh: Add missing sudos.
install-build-deps.sh: Add missing sudos.

Some apt commands were being run as the normal user,
resulting in the script dying.

BUG=none
TEST=gave the diff to someone; it fixed the failures for them

Review URL: http://codereview.chromium.org/2137002

git-svn-id: http://src.chromium.org/svn/trunk/src@47458 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ec8fa2353537ec92ea0de976b16b4092971fc7c5
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