+alemate this looks like a pretty small fix?
cc: wzang too as he's been doing a lot of polish bugs.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a5c71ee3a3a1a08041849f51f7e457e9673014f1

commit a5c71ee3a3a1a08041849f51f7e457e9673014f1
Author: wzang <wzang@chromium.org>
Date: Thu May 11 08:09:16 2017

Text change on 'Browse as Guest' button

BUG= 715637 

Review-Url: https://codereview.chromium.org/2864793002
Cr-Commit-Position: refs/heads/master@{#470871}

[modify] https://crrev.com/a5c71ee3a3a1a08041849f51f7e457e9673014f1/chrome/app/generated_resources.grd
[modify] https://crrev.com/a5c71ee3a3a1a08041849f51f7e457e9673014f1/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
[modify] https://crrev.com/a5c71ee3a3a1a08041849f51f7e457e9673014f1/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a89cf93013a528e4627bc5d6d06b5889ea4e845d

commit a89cf93013a528e4627bc5d6d06b5889ea4e845d
Author: wzang <wzang@chromium.org>
Date: Thu Jun 15 22:15:19 2017

Revert of Text change on 'Browse as Guest' button (patchset #3 id:40001 of https://codereview.chromium.org/2864793002/ )

Reason for revert:
According to UI-reivew, 'Guest' should be capitalized because it's
treated as a stand in for a user name (e.g. in the status tray) since
it's a special mode.

Original issue's description:
> Text change on 'Browse as Guest' button
>
> BUG= 715637 
>
> Review-Url: https://codereview.chromium.org/2864793002
> Cr-Commit-Position: refs/heads/master@{#470871}
> Committed: https://chromium.googlesource.com/chromium/src/+/a5c71ee3a3a1a08041849f51f7e457e9673014f1

TBR=jcivelli@chromium.org,alemate@chromium.org,msarda@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG= 715637 

Review-Url: https://codereview.chromium.org/2938743002
Cr-Commit-Position: refs/heads/master@{#479860}

[modify] https://crrev.com/a89cf93013a528e4627bc5d6d06b5889ea4e845d/chrome/app/generated_resources.grd

According to UI-reivew, 'Guest' should be capitalized because it's
treated as a stand in for a user name (e.g. in the status tray) since
it's a special mode.