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Issue 838345 link

Starred by 4 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Jul 2
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug



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Tabs sometimes paint one half at a time

Project Member Reported by sdy@chromium.org, Apr 30 2018

Issue description

Chrome Version: 68.0.3414.0
OS: macOS 10.13.4

What steps will reproduce the problem?
(1) In chrome://flags, enable #views-browser-windows and set #top-chrome-md to Refresh.*
(2) Click back and forth between two tabs repeatedly and watch the tab strip.

What is the expected result?
The tabs redraw all at once.

What happens instead?
Very infrequently, half the tab updates, and then the other half. Screen recording attached.

---
* I'm not sure whether this is an MD refresh issue or a MacViews issue, or whether it's even Mac-specific, but I don't think I ever noticed it before I switched on the refresh.
 
hsync.mp4
24.9 KB View Download

Comment 1 by sdy@chromium.org, Apr 30 2018

Here's a static screenshot from the video.
hsync-030.png
52.1 KB View Download

Comment 2 Deleted

Components: -Internals>Compositing
Owner: ellyjo...@chromium.org
Status: Assigned (was: Untriaged)
+ellyjones, related to ViewsBrowserWindows?

Comment 4 by sdy@chromium.org, May 4 2018

Components: -UI>Browser>TabStrip Internals>Compositing
Labels: Proj-MacViews
Owner: sdy@chromium.org
ccameron@ et. al: It looks like this is happening on a tile boundary. Does that provide any insight?

khushalsagar@: Yes, I'm on ellyjones@' team :-). If this isn't compositing, then I'm not sure what component should own it. Re-adding Internals>Compositing for the moment, but happy to move it.
Labels: MacViews-Release
Cc: sdy@chromium.org
Labels: Needs-TestConfirmation
Owner: ----
Status: Unconfirmed (was: Assigned)
Is this still reproable?
Cc: susan.boorgula@chromium.org
Labels: -Needs-TestConfirmation Triaged-ET Needs-Triage-M68 Needs-Feedback
Tested this issue on Mac OS 10.13.3 on the reported version 68.0.3414.0 and the latest Canary 69.0.3472.3 and unable to reproduce the issue by following the below steps.

1. Launched Chrome with the flag #views-browser-windows enabled and #top-chrome-md set to Refresh.
2. Opened two tabs and clicked back and forth repeatedly and can observe that the tab is painted all at once.
Attached is the screen cast for reference.

Request you to please check and confirm if anything is missed from our end in trigging the issue.

Thanks..
838345.webm
2.1 MB View Download
Labels: -MacViews-Release
Status: WontFix (was: Unconfirmed)
Yeah, I haven't seen this lately.
Labels: Group-Painting_Rendering_Compositing

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