Another issue is seen with same bisect range.

When save dialog is opened observe colour of chrome tabstrip.

If required will raise separate issue for this.

Able to reproduce this issue on Ubuntu 14.04 using chrome Dev #59.0.3048.0

Bisect Information:
---------------------
You are probably looking for a change made after 455595 (known good), but no later than 455596 (first known bad).

Change Log URL: 
https://chromium.googlesource.com/chromium/src/+log/caa6a6165d28c3bb499fc0aec9bf391c6bda1578..072522801041708fba94498a1844cb89f24d4590

From the above change log suspecting below change
Review URL: https://codereview.chromium.org/2670623002

thomasanderson@ - Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thanks!

Adding RB-Stable as this is recent regression.

The bisect is correct and this issue is a result of switching to the Gtk3 theme.

Unfortunately, this is a Gtk bug and there's not much we can do here.  It was fixed somewhere between Gtk 3.11 and 3.14 based on my testing, but Trusty is at 3.10.  The best-case scenario would be for Canonical to backport the patch onto 3.10.

Luckily, the issue is not seen on the Ambiance theme, which most Googlers use.

I think we can add a workaround for the Adwaita/HighContrast case.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ea8d1f89cb74cd379d78cf276bf6efbc3bf3ba6c

commit ea8d1f89cb74cd379d78cf276bf6efbc3bf3ba6c
Author: thomasanderson <thomasanderson@google.com>
Date: Tue May 02 22:49:22 2017

Gtk3: Fix black patches on GtkFileChooser dialogs

This CL fixes parts of GtkFileChoosers not getting rendered on GNOME
standard themes (Adwaita + HighContrast) causing black areas to
appear.

BUG= 704092 
R=erg@chromium.org
TBR=sky@chromium.org

Review-Url: https://codereview.chromium.org/2854773002
Cr-Commit-Position: refs/heads/master@{#468803}

[modify] https://crrev.com/ea8d1f89cb74cd379d78cf276bf6efbc3bf3ba6c/chrome/browser/ui/libgtkui/gtk_util.h
[modify] https://crrev.com/ea8d1f89cb74cd379d78cf276bf6efbc3bf3ba6c/chrome/browser/ui/libgtkui/native_theme_gtk3.cc
[modify] https://crrev.com/ea8d1f89cb74cd379d78cf276bf6efbc3bf3ba6c/chrome/browser/ui/libgtkui/native_theme_gtk3.h
[modify] https://crrev.com/ea8d1f89cb74cd379d78cf276bf6efbc3bf3ba6c/ui/base/glib/scoped_gobject.h

Your change meets the bar and is auto-approved for M59. Please go ahead and merge the CL to branch 3071 manually. Please contact milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), gkihumba@(ChromeOS), Abdul Syed@(Desktop)

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/+/05ad603540b72d126e19db8c1c2fc5aec53a4b98

commit 05ad603540b72d126e19db8c1c2fc5aec53a4b98
Author: thomasanderson <thomasanderson@google.com>
Date: Thu May 04 02:26:35 2017

[Merge to M59] Gtk3: Fix black patches on GtkFileChooser dialogs

> This CL fixes parts of GtkFileChoosers not getting rendered on GNOME
> standard themes (Adwaita + HighContrast) causing black areas to
> appear.
>
> BUG= 704092 
> R=erg@chromium.org
> TBR=sky@chromium.org
>
> Review-Url: https://codereview.chromium.org/2854773002
> Cr-Commit-Position: refs/heads/master@{#468803}

BUG= 704092 
R=erg@chromium.org
TBR=sky@chromium.org
NOPRESUBMIT=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2856393002
Cr-Commit-Position: refs/branch-heads/3071@{#390}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}

[modify] https://crrev.com/05ad603540b72d126e19db8c1c2fc5aec53a4b98/chrome/browser/ui/libgtkui/gtk_util.h
[modify] https://crrev.com/05ad603540b72d126e19db8c1c2fc5aec53a4b98/chrome/browser/ui/libgtkui/native_theme_gtk3.cc
[modify] https://crrev.com/05ad603540b72d126e19db8c1c2fc5aec53a4b98/chrome/browser/ui/libgtkui/native_theme_gtk3.h
[modify] https://crrev.com/05ad603540b72d126e19db8c1c2fc5aec53a4b98/ui/base/glib/scoped_gobject.h

verified the issue on Linux Ubuntu-14.04 using chrome version 59.0.3071.47 with the steps mentioned in comment#0.
Observed that the fix is working as expected.hence adding TE-Verified labels.
Please find the attached screen cast for reference for the sama.

Thanks.

Deleted: issue-704092.mp4 630 KB

	issue-704092.mp4 630 KB View Download