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Issue 907388 link

Starred by 2 users
Status: Available
Owner: ----
Cc:
nyerramilli@chromium.org
rbasuvula@chromium.org
pkasting@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 3
Type: Bug-Regression



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Regression: Unwanted blink of vertical white is seen in tabstrip area while opening multiple tabs.

Reported by db...@etouch.net, Nov 21 
Chrome Version: 72.0.3616.0 Revision 95ce71356251517776e712f9815217c46c767dcc-refs/branch-heads/3616@{#1}(32/64Bit)
OS: Windows(7,8,8.1,10) 

What steps will reproduce the problem?
(1) Launch chrome, open multiple tabs using Ctrl+T or clicking on + icon in tabstrip.
(2) Observe vertical line while opening tabs.

Actual: Unwanted blink of vertical white is seen in tabstrip area while opening tabs.

Expected: No such a blink should seen.

This is a regression issue, broken in 'M69', will soon update other info:

Good Build:69.0.3479.0
Bad Build: 69.0.3480.0

Note: Issue is not seen on Mac(10.13.1,10.13.6,10.14.6) and Linux(10.14LTS) OS.
Actual_Video.mp4
1.9 MB View Download
Expected_Video.mp4
926 KB View Download

Comment 1 by db...@etouch.net, Nov 21

Labels: hasbisect
Owner: pkasting@chromium.org
Status: Assigned (was: Unconfirmed)
You are probably looking for a change made after 572043 (known good), but no later than 572050 (first known bad).
CHANGELOG URL:
  
https://chromium.googlesource.com/chromium/src/+log/5811aa08e60ba5ac7622f029163213cfbdb682f7..f357cd72beb4b22fc5da8e2ebb2bd9f531cbf8df

Suspect: https://chromium.googlesource.com/chromium/src/+/786c0a95664681ab1780d67a4bd2b5e4a27a21a6

@pkasting: 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.

Comment 2 by robliao@chromium.org, Nov 22

Labels: Hotlist-DesktopUIConsider

Comment 3 by robliao@chromium.org, Nov 22

Labels: Group-Tabstrip

Comment 4 by robliao@chromium.org, Nov 29

Labels: -Hotlist-DesktopUIConsider Hotlist-DesktopUITriaged

Comment 5 by robliao@chromium.org, Dec 11

Labels: -M-72 -Target-72 -Target-71 -Target-70 M-73 Target-73

Comment 6 by pkasting@chromium.org, Dec 13

Labels: -Pri-1 Pri-3
Owner: ----
Status: Available (was: Assigned)
To clarify this bug: I can't see the issue on the screencast, but in real-world testing, if I add new tabs once the tabstrip goes into overflow, there is a brief blip of the tab at 1 DIP wide, at wherever its X coordinate would actually be (e.g. behind the NTB), before it disappears.

This may get mooted by scrollable tabs.
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