Revert of [DevTools] More Device Mode polish.

Revert of [DevTools] More Device Mode polish. (patchset #1 id:1 of https://codereview.chromium.org/1575203003/ )

Reason for revert:
Breaks responsive mode.

Original issue's description:
> [DevTools] More Device Mode polish.
>
> - fixed ruler in overlay with page scale factor;
> - dimming zoom label based on some content being cropped;
> - added dpr and ua type labels;
> - fixed fit calculations;
> - string updates.
>
> BUG=540864
>
> Committed: https://crrev.com/a15860e14bdca7cba13cad960008e0581836b93b
> Cr-Commit-Position: refs/heads/master@{#368822}

TBR=dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=540864
Committed: https://crrev.com/012c3f9ac6c5568c80a7929eed4ae34a84f8135a
Cr-Commit-Position: refs/heads/master@{#368950}

[pfeldman, 2016-01-12 19:34:28]

Created Revert of [DevTools] More Device Mode polish.

[commit-bot: I haz the power, 2016-01-12 19:35:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1574373002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1574373002/1

[commit-bot: I haz the power, 2016-01-12 19:36:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-12 19:37:34]

Description was changed from

==========
Revert of [DevTools] More Device Mode polish. (patchset #1 id:1 of
https://codereview.chromium.org/1575203003/ )

Reason for revert:
Breaks responsive mode.

Original issue's description:
> [DevTools] More Device Mode polish.
> 
> - fixed ruler in overlay with page scale factor;
> - dimming zoom label based on some content being cropped;
> - added dpr and ua type labels;
> - fixed fit calculations;
> - string updates.
> 
> BUG=540864
> 
> Committed: https://crrev.com/a15860e14bdca7cba13cad960008e0581836b93b
> Cr-Commit-Position: refs/heads/master@{#368822}

TBR=dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=540864
==========

to

==========
Revert of [DevTools] More Device Mode polish. (patchset #1 id:1 of
https://codereview.chromium.org/1575203003/ )

Reason for revert:
Breaks responsive mode.

Original issue's description:
> [DevTools] More Device Mode polish.
>
> - fixed ruler in overlay with page scale factor;
> - dimming zoom label based on some content being cropped;
> - added dpr and ua type labels;
> - fixed fit calculations;
> - string updates.
>
> BUG=540864
>
> Committed: https://crrev.com/a15860e14bdca7cba13cad960008e0581836b93b
> Cr-Commit-Position: refs/heads/master@{#368822}

TBR=dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=540864

Committed: https://crrev.com/012c3f9ac6c5568c80a7929eed4ae34a84f8135a
Cr-Commit-Position: refs/heads/master@{#368950}
==========

[commit-bot: I haz the power, 2016-01-12 19:37:35]

Patchset 1 (id:??) landed as
https://crrev.com/012c3f9ac6c5568c80a7929eed4ae34a84f8135a
Cr-Commit-Position: refs/heads/master@{#368950}