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Issue 746286 link

Starred by 1 user
Status: WontFix
Owner:
█ aelias@chromium.org
inactive
Closed: Jul 2017
Cc:
nyerramilli@chromium.org
rbasuvula@chromium.org
█ msrchandra@chromium.org
jmukthavaram@chromium.org
█ ranjitkan@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug-Regression



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Regression : Autoscroll issue is seen after moving cursor till omnibox area and bringing back.

Reported by rp...@etouch.net, Jul 19 2017 
Version: 61.0.3161.0 76e234ed8928315841951a5f170232e9c959633d-refs/heads/master@{#487694}
OS: Windows(7,8,8.1,10)

What steps will reproduce the problem?
1. Launch chrome, navigate to NTP and right click to open context menu
2. Now select 'View page source' from context menu and then click on middle click of mouse to auto scroll the 'View page source' page.
3. Now move the auto scroll cursor till omnibox and bring it back to page to move down,observe

Actual: Unable to auto scroll after moving mouse cursor till omnibox area and bringing back to main page.
Expected: Should be able to auto scroll after moving mouse cursor till omnibox area and bringing back to main page.

This is regression issue, broken in ‘M 61’ and will soon update other info :
Good build:61.0.3132.0
Bad build: 61.0.3133.0

Note : Issue is not seen on Mac and Linux OS.
Actual_video.mp4
4.9 MB View Download
Expected_video.mp4
12.8 MB View Download

Comment 1 by jmukthavaram@chromium.org, Jul 19 2017

Cc: jmukthavaram@chromium.org
Labels: hasbisect-per-revision
Owner: aelias@chromium.org
Status: Assigned (was: Unconfirmed)
Able to reproduce the issue on Windows 7 using chrome latest canary-61.0.3161.0.
Manual bisect info:
------------------
Good build: 61.0.3132.0-Revision-479900
Bad build: 61.0.3133.0-Revision-480259

Per revision bisect info:
------------------------
You are probably looking for a change made after 479930 (known good), but no later than 479931 (first known bad).
CHANGELOG URL:
The script might not always return single CL as suspectas some perf builds might get missing due to failure.
https://chromium.googlesource.com/chromium/src/+log/9ede2cde5727eecdb377b57b32c5226d1d41c8ce..5971e47dc08dbb773f58fd6fb13b1df7917fd295

Possible suspect:
----------------
https://chromium.googlesource.com/chromium/src/+/5971e47dc08dbb773f58fd6fb13b1df7917fd295

aelias@Could you please take a look & reassign to the right owner if it is not related to your change.

Thanks..!!

Comment 2 by aelias@chromium.org, Jul 19 2017

Status: WontFix (was: Assigned)
This is working as intended.  The speed of toggle-autoscroll cannot be controlled when the mouse cursor leaves the main content window, so rather than let the autoscroll keep going out of control, I cancelled the autoscroll in this situation instead.  (You can still leave the window and keep autoscroll going with middle-hold-autoscroll.)
►

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