Update license file for M33

Changes in about_os_credits.html are:

Package removed: alsa-headers-1.0.25
Package removed: module-init-tools-3.16

Package added: kmod-15
Package added: libmbim-0.0.1
Package added: m4-1.4.16
Package added: xf86-video-fbdev-0.4.1

Package updated: alsa-lib from 1.0.25 to 1.0.27.2
Package updated: alsa-utils from 1.0.25 to 1.0.27.1
Package updated: autoconf from 2.68 to 2.69
Package updated: autoconf-wrapper from 10 to 13
Package updated: automake-wrapper from 5 to 9
Package updated: bash from 4.2_p20 to 4.2_p45
Package updated: flex from 2.5.35_p10 to 2.5.37
Package updated: gcc-libs from 4.7.2 to 4.8.1
Package updated: intltool from 0.41.0 to 0.50.2
Package updated: iptables from 1.4.8 to 1.4.16.3
Package updated: libffi from 3.0.9 to 3.0.11
Package updated: libva from 1.1.1 to 1.2.1
Package updated: libva-intel-driver from 1.0.20 to 1.2.1
Package updated: lvm2 from 2.02.88 to 2.02.97
Package updated: mime-types from 8 to 9
Package updated: nacl-mozc from 1.10.1389.104 to 1.12.1599.104
Package updated: net-tools from 1.60_p20110409135728 to 1.60_p20120127084908
Package updated: nspr from 4.10 to 4.10.2
Package updated: nss from 3.15.1 to 3.15.3
Package updated: rsync from 3.0.8 to 3.0.9
Package updated: shared-mime-info from 0.90 to 1.0
Package updated: wget from 1.12 to 1.14
Package updated: xz-utils from 4.999.9_beta to 5.0.5

License removed: Source License rootdev/LICENSE

License added: Source License dhcp/COPYING
License added: Source License xf86-video-fbdev/COPYING
License added: Stock License LGPL-2.1+

R=vapier@chromium.org, xiyuan@chromium.org

Review URL: https://codereview.chromium.org/119533002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244616 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244616
Ensure WeakPtrFactories are at the end of their owning classes and refer
directly to their owning class types.

Also does a little bit of other non-functional cleanup, mostly eliminating
unnecessary get() calls and fixing violations of the "don't handle DCHECK
failure" style rule.

BUG=303818
TEST=none
R=dmichael@chromium.org

Review URL: https://codereview.chromium.org/122543002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244618 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244618