Fairly simple patch is here: https://codereview.chromium.org/2145713002/

pkasting@ would be the best reviewer but he's ooo. Do we care about trying to fix this in m53? If not, we can wait for Peter's return. If so, I'll try to find some other reviewer.

Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/eb39becd04cdefd6aac776b659358458aa7ace23

commit eb39becd04cdefd6aac776b659358458aa7ace23
Author: estade <estade@chromium.org>
Date: Tue Jul 19 20:33:55 2016

Adjust BackgroundWith1PxBorder to better handle fractional scale factors

This fixes blurriness in the omnibox border on surface tablets.

BUG= 627469 

Review-Url: https://codereview.chromium.org/2145713002
Cr-Commit-Position: refs/heads/master@{#406371}

[modify] https://crrev.com/eb39becd04cdefd6aac776b659358458aa7ace23/chrome/browser/ui/views/location_bar/background_with_1_px_border.cc

this is a pretty small and safe fix, so I think it's worth merging to m53.

Your change meets the bar and is auto-approved for M53 (branch: 2785)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0af855b7d79ce3de072a9a2f74dd80ec02ffae64

commit 0af855b7d79ce3de072a9a2f74dd80ec02ffae64
Author: Evan Stade <estade@chromium.org>
Date: Thu Jul 21 17:31:20 2016

Adjust BackgroundWith1PxBorder to better handle fractional scale factors

This fixes blurriness in the omnibox border on surface tablets.

BUG= 627469 

Review-Url: https://codereview.chromium.org/2145713002
Cr-Commit-Position: refs/heads/master@{#406371}
(cherry picked from commit eb39becd04cdefd6aac776b659358458aa7ace23)

Review URL: https://codereview.chromium.org/2172713002 .

Cr-Commit-Position: refs/branch-heads/2785@{#265}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}

[modify] https://crrev.com/0af855b7d79ce3de072a9a2f74dd80ec02ffae64/chrome/browser/ui/views/location_bar/background_with_1_px_border.cc

Verified the butter bar on Chrome 53.0.2785.30 and it looks sharp, please find the attached screenshot.

Note : Verified this on high dpi laptop with scale factor set to 150%.

Deleted: issue#627469-1.png 24.2 KB

	issue#627469-1.png 24.2 KB View Download

this bug is actually about the location bar outline, not the infobar.

Tried to verify the fix for omnibox border on Window-10 with chrome versions(54.0.2809.0 - with Fix), (53.0.2785.21 - without Fix) and (53.0.2785.30 - Fix merged) at device scale factor of set to 250%.

Attached is the screenshot of the same.

Deleted: Omniborder_1.png 1.1 MB

	Omniborder_1.png 1.1 MB View Download

Deleted: Omniborder_2.png 937 KB

	Omniborder_2.png 937 KB View Download

great, looks good