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This reverts commit 0397ac4e.

Reason for revert: 
Two tests that had expectations updated in this CL are failing
consistently on Win7 Tests, see 
https://bugs.chromium.org/p/chromium/issues/detail?id=1139546

Original change's description:
> [Controls Refresh] Update controls styles for dark mode
>
> This CL updates the dark mode styles for the following controls:
> 1. <meter> -  border color.
> 2. multi-select - foreground text color.
> 3. Button: Dark mode button design has no border and has unique fill
>    color. Thus, a specific set of color enums is created for only
>    buttons. Button's border color is styled to match its fill color
>    in order to give the appearance of no borders and keep its
>    dimensions unchanged. This impacts: button, file, and color
>    controls.
>
>
> Bug: 1107290, 1099624
> Change-Id: I141c199f93acac2b950b8af7195e863f811c2f4c
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2469357
> Commit-Queue: Yu Han <yuzhehan@google.com>
> Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
> Reviewed-by: Mason Freed <masonfreed@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#818119}

TBR=ellyjones@chromium.org,masonfreed@chromium.org,yuzhehan@google.com,yuzhehan@chromium.org

Change-Id: I9eee08b77da1bf2887b72e1990bf9e76d6334c59
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1107290
Bug: 1099624
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2482166Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818192}