[DevTools] Do not reset scroll when emulating device.

[DevTools] Do not reset scroll when emulating device.

We used to reset scroll and page scale factor, now we
only reset the latter.
Also, reusing mainFrameResizesAreOrientationChanges setting
to preserve the scroll position based on DOM node.

BUG=581115
Committed: https://crrev.com/d6db426e2e3e06e29e1f0bf0cc435cb3a7acb311
Cr-Commit-Position: refs/heads/master@{#371567}

[dgozman, 2016-01-26 00:37:09]

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

[dgozman, 2016-01-26 00:37:09]

Take a look please.

[pfeldman, 2016-01-26 18:24:00]

lgtm

[dgozman, 2016-01-26 18:32:49]

The CQ bit was checked by dgozman@chromium.org

[paulirish, 2016-01-26 18:33:23]

this is awesome stuff. thanks for trying it out.

[commit-bot: I haz the power, 2016-01-26 18:35:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1632983002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1632983002/1

[commit-bot: I haz the power, 2016-01-26 19:49:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-26 19:49:56]

Description was changed from

==========
[DevTools] Do not reset scroll when emulating device.

We used to reset scroll and page scale factor, now we
only reset the latter.
Also, reusing mainFrameResizesAreOrientationChanges setting
to preserve the scroll position based on DOM node.

BUG=581115
==========

to

==========
[DevTools] Do not reset scroll when emulating device.

We used to reset scroll and page scale factor, now we
only reset the latter.
Also, reusing mainFrameResizesAreOrientationChanges setting
to preserve the scroll position based on DOM node.

BUG=581115

Committed: https://crrev.com/d6db426e2e3e06e29e1f0bf0cc435cb3a7acb311
Cr-Commit-Position: refs/heads/master@{#371567}
==========

[commit-bot: I haz the power, 2016-01-26 19:49:57]

Patchset 1 (id:??) landed as
https://crrev.com/d6db426e2e3e06e29e1f0bf0cc435cb3a7acb311
Cr-Commit-Position: refs/heads/master@{#371567}