Shorten "American Express" to "Amex" in Chrome UI.

Shorten "American Express" to "Amex" in Chrome UI.

"American Express" is still used for filling into the page.

BUG=none

Committed: https://crrev.com/d5c048a8f316b8bcd4971aec94e1ce19c20de3fe
Cr-Commit-Position: refs/heads/master@{#317459}

[Evan Stade, 2015-02-18 23:12:11]

estade@chromium.org changed reviewers:
+ brettw@chromium.org

[Evan Stade, 2015-02-19 18:42:04]

On 2015/02/18 23:12:12, Evan Stade wrote:

ping (I'll fix unit test failures)

[brettw, 2015-02-19 21:34:00]

lgtm

[Evan Stade, 2015-02-19 21:50:06]

New patchsets have been uploaded after l-g-t-m from brettw@chromium.org

[Evan Stade, 2015-02-19 21:50:26]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2015-02-19 21:50:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/936273002/40001

[commit-bot: I haz the power, 2015-02-19 23:00:43]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-19 23:00:44]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Evan Stade, 2015-02-20 00:14:06]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2015-02-20 00:16:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/936273002/40001

[commit-bot: I haz the power, 2015-02-20 00:28:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-20 00:28:35]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Evan Stade, 2015-02-20 23:23:32]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2015-02-20 23:24:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/936273002/60001

[commit-bot: I haz the power, 2015-02-21 00:49:44]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-02-21 00:50:14]

Patchset 4 (id:??) landed as
https://crrev.com/d5c048a8f316b8bcd4971aec94e1ce19c20de3fe
Cr-Commit-Position: refs/heads/master@{#317459}