This may require updating searchable-drop-down to support variable width

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/65520fc3c69d77aa80eaca623afbb80b661ff1a0

commit 65520fc3c69d77aa80eaca623afbb80b661ff1a0
Author: Bailey Berro <baileyberro@chromium.org>
Date: Wed Sep 26 23:18:19 2018

Make SMB add share dialog fields full width

- Makes add dialog share fields stretch the full width of the dialog
- Adds width styling mix-in to cr-searchable-drop-down
- Updates add printer styling to be consistent after removing fixed
width styling from cr-searchable-drop-down

Bug:  chromium:887111 
Change-Id: Ibcb9c67b90cff9d0c5bf0c8cc058b6d218cb1f1a
Reviewed-on: https://chromium-review.googlesource.com/1244614
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594516}
[modify] https://crrev.com/65520fc3c69d77aa80eaca623afbb80b661ff1a0/chrome/browser/resources/settings/downloads_page/add_smb_share_dialog.html
[modify] https://crrev.com/65520fc3c69d77aa80eaca623afbb80b661ff1a0/ui/webui/resources/cr_elements/cr_searchable_drop_down/cr_searchable_drop_down.html

The following revision refers to this bug: 
https://chromium.googlesource.com/chromium/src.git/+/19176ced2767a182a28086b64a6e56f752af79ff

Commit: 19176ced2767a182a28086b64a6e56f752af79ff
Author: baileyberro@chromium.org
Commiter: zentaro@chromium.org
Date: 2018-09-27 23:02:59 +0000 UTC

Make SMB add share dialog fields full width

- Makes add dialog share fields stretch the full width of the dialog
- Adds width styling mix-in to cr-searchable-drop-down
- Updates add printer styling to be consistent after removing fixed
width styling from cr-searchable-drop-down

Bug:  chromium:887111 
Change-Id: Ibcb9c67b90cff9d0c5bf0c8cc058b6d218cb1f1a
Reviewed-on: https://chromium-review.googlesource.com/1244614
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#594516}(cherry picked from commit 65520fc3c69d77aa80eaca623afbb80b661ff1a0)
Reviewed-on: https://chromium-review.googlesource.com/1249886
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/branch-heads/3538@{#718}
Cr-Branched-From: 79f7c91a2b2a2932cd447fa6f865cb6662fa8fa6-refs/heads/master@{#587811}

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/19176ced2767a182a28086b64a6e56f752af79ff

commit 19176ced2767a182a28086b64a6e56f752af79ff
Author: Bailey Berro <baileyberro@chromium.org>
Date: Thu Sep 27 23:02:59 2018

Make SMB add share dialog fields full width

- Makes add dialog share fields stretch the full width of the dialog
- Adds width styling mix-in to cr-searchable-drop-down
- Updates add printer styling to be consistent after removing fixed
width styling from cr-searchable-drop-down

Bug:  chromium:887111 
Change-Id: Ibcb9c67b90cff9d0c5bf0c8cc058b6d218cb1f1a
Reviewed-on: https://chromium-review.googlesource.com/1244614
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#594516}(cherry picked from commit 65520fc3c69d77aa80eaca623afbb80b661ff1a0)
Reviewed-on: https://chromium-review.googlesource.com/1249886
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/branch-heads/3538@{#718}
Cr-Branched-From: 79f7c91a2b2a2932cd447fa6f865cb6662fa8fa6-refs/heads/master@{#587811}
[modify] https://crrev.com/19176ced2767a182a28086b64a6e56f752af79ff/chrome/browser/resources/settings/downloads_page/add_smb_share_dialog.html
[modify] https://crrev.com/19176ced2767a182a28086b64a6e56f752af79ff/ui/webui/resources/cr_elements/cr_searchable_drop_down/cr_searchable_drop_down.html