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Issue 687917 link

Starred by 1 user
Status: Fixed
Owner:
█ ethannicholas@chromium.org
Last visit > 30 days ago
Closed: Feb 2017
Cc:
nyerramilli@chromium.org
█ msrchandra@chromium.org
█ ranjitkan@chromium.org
█ sureshkumari@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug-Regression



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Regression: Unwanted flash of black patches is seen for 'Why do I need to provide my date of birth?' pop-up at "facebook.com"

Reported by adha...@etouch.net, Feb 2 2017 
Chrome Version : 58.0.2999.4 (Official Build) 260734633f0624551d6b79597c0dad641420911a-refs/branch-heads/2999@{#4} 64 bit
OS : Mac(10.12.1, 10.11.6, 10.12)

URL: https://www.facebook.com/

Steps:
1. Launch Chrome and navigate to above URL
2. Click on 'Why do I need to provide my date of birth?' link seen under 'Birthday'
3. Observe the pop-up

Actual: Unwanted flash of black patches is seen at the border of 'Why do I need to provide my date of birth?' pop-up

Expected: No such flash of black patches should be seen at the border of 'Why do I need to provide my date of birth?' pop-up

This is a regression issue broken in ‘M-58’, below is the Manual Regression range and will soon update other info.

Good build : 58.0.2988.0
Bad build : 58.0.2989.0

Note: This is Mac OS specific issue, not seen on Windows and Linux OS
Actual_ video.mov
2.3 MB Download
Expected_video.mov
1.8 MB Download

Comment 1 by sureshkumari@chromium.org, Feb 2 2017

Cc: sureshkumari@chromium.org
Labels: hasbisect-per-revision ReleaseBlock-Stable
Owner: robertphillips@chromium.org
Status: Assigned (was: Unconfirmed)
Able to reproduce the issue on Mac-10.12.2 using canary 58.0.3000.0
Using the per-revision bisect providing the bisect results
Good build : 58.0.2988.0,  Revision Range -445272
Bad build  : 58.0.2989.0,  Revision Range -445281

You are probably looking for a change made after 445275 (known good), but no later than 445276 (first known bad).
CHANGELOG URL:
The script might not always return single CL as suspect as some perf builds might get missing due to failure.
  https://chromium.googlesource.com/chromium/src/+log/209094f6afac678695e7061b0e02e3dc21eb7ebe..677c0342b556d3dd7a5387ffba13cc0079439ad7
Possible suspect:
------------------https://skia.googlesource.com/skia.git/+/77505da16093695f717ad34ff100ec11ffb2835b

From the CL above, assigning the issue to the concern owner
Robert Phillips@ Could you please look into the issue, pardon me if it has nothing to do with your changes and if possible please assign it to concern owner.

Thanks..

Comment 2 by robertphillips@chromium.org, Feb 2 2017

Owner: ethannicholas@chromium.org
This is being caused by:

https://skia-review.googlesource.com/c/5941/ (Replaced all calls to fragmentPosition() with sk_FragCoord)

so should be fixed when the following CL rolls into Chrome:

https://skia-review.googlesource.com/c/7887/ (Revert "Replaced all calls to fragmentPosition() with sk_FragCoord")

Note that there seems to be another issue here too. Even before the patch in question, clicking on the 'Why do I need to provide my date of birth?' button multiple times would lead to a darkening of the shadow. This may be something with the page's code however.

Comment 3 by ethannicholas@chromium.org, Feb 3 2017

Status: Fixed (was: Assigned)
►

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