Marking the above issue as RB-Stable.

Feel free to remove if not required.

Thank you!

Able to reproduce the issue on Mac OS 10.11.5 using chrome latest canary M53-53.0.2768.0. Observed the close button on tab strip is not visible after adding color spring theme.

shrike@ - Any update on this bug? Since this issue is marked as ReleaseBlock-Stable could you please check is this issue due to your change, If not please feel free to reassign it to the concerned Dev person.

Thanks!

I'm the correct owner, and hope to look into this today.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/29bd2eed90a5c548ce737aa09225952bfab22461

commit 29bd2eed90a5c548ce737aa09225952bfab22461
Author: shrike <shrike@chromium.org>
Date: Thu Jun 16 15:40:16 2016

[Mac][Material Design] Fix problem with tab close button redraw.

With a theme installed the close button's "x" can have a different
color for the tab active and inactive states. This cl forces the close
button to redraw on tab state change so that it displays the "x" in the
correct color.

R=tapted@chromium.org
BUG= 616008 

Review-Url: https://codereview.chromium.org/2073523002
Cr-Commit-Position: refs/heads/master@{#400162}

[modify] https://crrev.com/29bd2eed90a5c548ce737aa09225952bfab22461/chrome/browser/ui/cocoa/tabs/tab_view.mm

Tested the same on mac 10.11 chrome version 53.0.2770.0 - ’Close’ button on tab strip is visible for previous tabs after adding the theme.

Please find the screenshot

Fix works as expected

Your change meets the bar and is auto-approved for M52 (branch: 2743)

shrike@, can you please merge this CL in to M52 branch by EOD so that it can be picked up for beta promotion scheduled next week.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ab1fa8cfc752cc3f21a6af02b5f5a373f36f02b2

commit ab1fa8cfc752cc3f21a6af02b5f5a373f36f02b2
Author: Jayson Adams <shrike@chromium.org>
Date: Mon Jun 20 21:24:50 2016

[Mac][Material Design] Fix problem with tab close button redraw.

With a theme installed the close button's "x" can have a different
color for the tab active and inactive states. This cl forces the close
button to redraw on tab state change so that it displays the "x" in the
correct color.

R=tapted@chromium.org
BUG= 616008 

Review-Url: https://codereview.chromium.org/2073523002
Cr-Commit-Position: refs/heads/master@{#400162}
(cherry picked from commit 29bd2eed90a5c548ce737aa09225952bfab22461)

Review URL: https://codereview.chromium.org/2080973002 .

Cr-Commit-Position: refs/branch-heads/2743@{#414}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}

[modify] https://crrev.com/ab1fa8cfc752cc3f21a6af02b5f5a373f36f02b2/chrome/browser/ui/cocoa/tabs/tab_view.mm

Tested the issue on Mac 10.11.5 using chrome version 52.0.2743.49.Close button of previous tabs is visible after adding the theme.
Please find the attached screen cast for the same.
Adding TE-Verified labels.

Thanks,

Deleted: 616008.mp4 509 KB

	616008.mp4 509 KB View Download