Update net/third_party/nss to NSS 3.15.4.

Notable changes:

1. Reorder the cipher suites offered in ClientHello.
https://bugzilla.mozilla.org/show_bug.cgi?id=936828
https://bugzilla.mozilla.org/show_bug.cgi?id=946147

2. Store a random value in the gmt_unix_time field of ClientHello and
ServerHello.
https://bugzilla.mozilla.org/show_bug.cgi?id=937976

3. Handle >= 2048-bit DSA certificates.
https://bugzilla.mozilla.org/show_bug.cgi?id=925591

4. Session ticket renewal bug fixes.
https://bugzilla.mozilla.org/show_bug.cgi?id=930857
https://bugzilla.mozilla.org/show_bug.cgi?id=930874

The following patches are removed.

1. Patches that are no longer necessary because we require NSS 3.14.3:
versionskew.patch
ecpointform.patch
cbc.patch

2. Patches that have been committed in NSS upstream:
renegoscsv.patch
peercertchain.patch	
peercertchain2.patch
negotiatedextension.patch
sslsock_903565.patch	
aesgcm.patch
tls12backuphash.patch	
tls12backuphash2.patch
ciphersuiteversion.patch
resumeclienthelloversion.patch
canfalsestart.patch
nullcipher_934016.patch

3. Miscellaneous:
channelid2.patch: merged with channelid.patch.
disableticketrenewal.patch: bug fixed in the NSS upstream.

R=agl@chromium.org,rsleevi@chromium.org
BUG=331625
TEST=none

Review URL: https://codereview.chromium.org/111853013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243395 0039d316-1c4b-4281-b951-d872f2087c98
Remove NaCl SDK bots from top-level PRESUBMIT.py

This change was originally introduced to only run the NaCl SDK bots when
all changes were to files in the native_client_sdk directory.

This change is no longer safe, as some changes can affect other builders
(such as changes to create_nmf.py and nacl_io).

BUG=none
R=stip@chromium.org

Review URL: https://codereview.chromium.org/112953005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243396 0039d316-1c4b-4281-b951-d872f2087c98
Prefills the name field with the last sync username

BUG=330688

Review URL: https://codereview.chromium.org/113853004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243397 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243397