Tested on windows 10 using chrome canary M56 #56.0.2909.0 and issue is reproduced.

Confirming the issue and Untraiging , so that it get addressed.

Requesting someone from MD-settings team to look into it. 

Thanks !

I agree that the sync summary should not be "Sync everything" if ... only some things are being synced.

Seems like a very reasonable point :)

Alan - right now, the subtitle on the "Sync" row in MD settings is always "On - sync everything" if sync is on, working, and there's no error. We should probably update the subtitle if you have unchecked specific data types.

What do you think we should use as the subtitle? We could just go with "On." Or perhaps "On - choose what to sync" (which is the phrase we use in current settings advanced sync settings: https://screenshot.googleplex.com/0ytOEZaFwiR.png - though that is a slightly different context).

How about "On - sync some things"? :-)

My 2nd favorite would just be "On"

"On - sync some things" feels a little awkward to me. I would be happy with just "On."

Just waiting on Alan's input.

Or a slight variant of Tom's suggestion: "On - syncing some things"

How does "On - custom settings" sound? 

"On - custom settings" SGTM

Re-assigning to Tommy for implementation.

SGTM with one clarification:

If the user unchecks the Sync everything toggle, but leaves all the data types still enabled, I highly recommend also displaying the "On - custom settings".

I suggest this because the sync prefs code keeps a separate flag for the default syncing everything state, and it would be smart to match the string to that flag. "On - custom settings" is still accurate to that state anyways.

Well here's the CL with the changes in c#11: https://codereview.chromium.org/2631803002/

I just sent it out for review.

Yep, the behavior described in #11 SGTM. Thanks Tommy :)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/634697b5871cac5bee8850a965b97e23961fd8c8

commit 634697b5871cac5bee8850a965b97e23961fd8c8
Author: tommycli <tommycli@chromium.org>
Date: Wed Jan 18 17:24:58 2017

MD Settings People: Display "On - custom settings" for custom data types

When the user has a custom data types synced, display
"On - custom settings" instead of "On - sync everything".

BUG= 662025 

Review-Url: https://codereview.chromium.org/2631803002
Cr-Commit-Position: refs/heads/master@{#444409}

[modify] https://crrev.com/634697b5871cac5bee8850a965b97e23961fd8c8/chrome/app/generated_resources.grd
[modify] https://crrev.com/634697b5871cac5bee8850a965b97e23961fd8c8/chrome/browser/sync/sync_ui_util.cc

Fixed. Please verify.

Verified

Google Chrome	57.0.2986.0 (Official Build) dev (64-bit)
Revision	12c8d70173fc1a04fa588b75be71ab5e80655c60-refs/heads/master@{#444600}