[DevTools] Device Mode polish.

[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- allowed sticky height (empty value);
- resizing on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864
Committed: https://crrev.com/22d8f1d01fc461524258b9856f326697f9b84b0c
Cr-Commit-Position: refs/heads/master@{#368686}

[dgozman, 2016-01-09 02:53:30]

Description was changed from

==========
[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- resize on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864
==========

to

==========
[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- allowed sticky height (empty value);
- resizing on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864
==========

[dgozman, 2016-01-09 02:53:42]

dgozman@chromium.org changed reviewers:
+ pfeldman@chromium.org

[dgozman, 2016-01-09 02:53:42]

Take a look please.

[pfeldman, 2016-01-11 19:47:56]

lgtm

[dgozman, 2016-01-11 19:54:19]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2016-01-11 19:55:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1564363005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1564363005/1

[commit-bot: I haz the power, 2016-01-11 22:08:45]

Description was changed from

==========
[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- allowed sticky height (empty value);
- resizing on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864
==========

to

==========
[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- allowed sticky height (empty value);
- resizing on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864
==========

[commit-bot: I haz the power, 2016-01-11 22:08:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-11 22:10:10]

Description was changed from

==========
[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- allowed sticky height (empty value);
- resizing on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864
==========

to

==========
[DevTools] Device Mode polish.

- removed blueprints;
- reworked zoom;
- allowed sticky height (empty value);
- resizing on toggling rulers;
- layout adjustments;
- fixed wrong values in options menu.

BUG=540864

Committed: https://crrev.com/22d8f1d01fc461524258b9856f326697f9b84b0c
Cr-Commit-Position: refs/heads/master@{#368686}
==========

[commit-bot: I haz the power, 2016-01-11 22:10:10]

Patchset 1 (id:??) landed as
https://crrev.com/22d8f1d01fc461524258b9856f326697f9b84b0c
Cr-Commit-Position: refs/heads/master@{#368686}

[pfeldman, 2016-01-12 19:37:17]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1581763002/ by pfeldman@chromium.org.

The reason for reverting is: Breaks responsive design mode..