[MD settings] currentRoute to Object

[MD settings] changing currentRoute property to Object

This CL changes the currentRoute property from an Array (which is incorrect, per Tommy) to an Object.

BUG=425627
Committed: https://crrev.com/df38e93145eed696c3c6efea3c24d22776366b86
Cr-Commit-Position: refs/heads/master@{#347949}

[dschuyler, 2015-09-09 01:13:38]

dschuyler@chromium.org changed reviewers:
+ dbeam@chromium.org

[Dan Beam, 2015-09-09 01:45:41]

lgtm

[dschuyler, 2015-09-09 16:46:38]

The CQ bit was checked by dschuyler@chromium.org

[commit-bot: I haz the power, 2015-09-09 16:46:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1321033004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1321033004/1

[commit-bot: I haz the power, 2015-09-09 16:54:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-09 16:55:13]

Patchset 1 (id:??) landed as
https://crrev.com/df38e93145eed696c3c6efea3c24d22776366b86
Cr-Commit-Position: refs/heads/master@{#347949}

[commit-bot: I haz the power, 2015-09-23 12:00:38]

Patchset 1 (id:??) landed as
https://crrev.com/df38e93145eed696c3c6efea3c24d22776366b86
Cr-Commit-Position: refs/heads/master@{#347949}