Bisect info: 585335 (good) - 585346 (bad)
https://chromium.googlesource.com/chromium/src/+log/49e1f815..2abbe360?pretty=fuller
Suspecting r585346 = 2abbe3603ada136a91b04abc6d0c4e93e90e98f9 = https://crrev.com/c/1183011 by yoichio@chromium.org
"Skip invalidation rect update if empty"
Landed in 70.0.3531.0

As per comment #0 and comment #1, able to reproduce issue on reported chrome version 70.0.3538.67 & on latest chrome 72.0.3587.0 using Windows 10, Ubuntu 14.04 and Mac 10.13.6. As per comment #1 providing bisect information below.

Bisect Info:
================
Good build: 70.0.3530.0
Bad build: 70.0.3531.0

CHANGELOG URL:
https://chromium.googlesource.com/chromium/src/+log/49e1f815..2abbe360?pretty=fuller

suspect: https://chromium.googlesource.com/chromium/src/+/954ed9ceb26067a267165e440bd863f74820ddef

Reviewed-on: https://chromium-review.googlesource.com/1183011

@Yoichi Osato: Please confirm the issue and help in re-assigning if it is not related to your change.Adding 'ReleaseBlock-Stable' label for M-70. Please feel free to remove if this is not applicable.

Thanks..!

M70 was already shipped. Which stable is this issue blocking?

We can punt this to M71.

Marking as P1 stable release-blocking regression targeted at M71.

Adding release blocker label for this issue.Please reduce priority or remove if not the case.

Thank You!

M71 Stable promotion is coming VERY soon. Your bug is labelled as Stable  ReleaseBlock, pls make sure to land the fix and request a merge into the release branch ASAP. Thank you.

M71 Stable promotion is coming VERY soon. Your bug is labelled as Stable  ReleaseBlock, pls make sure to land the fix and request a merge into the release branch ASAP. Thank you.

This issue is still high prioritized but not a stable blocker.

We would appreciate a speedy resolution. We provide a solution that relies on SVG to display documents in the browser. As you might imagine, this issue has a significant impact for us and makes us look bad.

This issue will be fixed at M72.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2576522f4c3b1ece705959ba065ce4b98ba4961e

commit 2576522f4c3b1ece705959ba065ce4b98ba4961e
Author: Yoichi Osato <yoichio@chromium.org>
Date: Thu Nov 08 09:04:01 2018

Invalidate LayoutSVGText when descendant LayoutText is invalidated.

We used to invalidate always LayoutSVGText even local selection rect
was empty before inserting early return of L342.
That caused regression that selection in svg text is not invalidated.

This patch fixes the regression by invalidating LayoutSVGText always
as before.

Bug:  897752 
Change-Id: I534959ccb461d55d38e85e053c9b9c478b3878b3
Reviewed-on: https://chromium-review.googlesource.com/c/1314019
Commit-Queue: Yoichi Osato <yoichio@chromium.org>
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606388}
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/flag-specific/enable-slimming-paint-v2/paint/invalidation/svg/text-selection-update-expected.txt
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/paint/invalidation/svg/text-selection-update.svg
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/svg/text-selection-update-expected.png
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/svg/text-selection-update-expected.txt
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/platform/mac/paint/invalidation/svg/text-selection-update-expected.png
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/platform/mac/paint/invalidation/svg/text-selection-update-expected.txt
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/platform/win/paint/invalidation/svg/text-selection-update-expected.png
[add] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/WebKit/LayoutTests/platform/win/paint/invalidation/svg/text-selection-update-expected.txt
[modify] https://crrev.com/2576522f4c3b1ece705959ba065ce4b98ba4961e/third_party/blink/renderer/core/paint/object_paint_invalidator.cc

 Issue 904543  has been merged into this issue.

Is it possible for this fix to be merged into 71?

Unless a issue is a huge disaster or a security issue to be fixed ASAP, we don't.

Thanks for the information.

I understand that SVG text selection is not a widely used feature, but those that rely on it would consider this issue a huge disaster (it is the same impact as breaking the selection of HTML text).

Can I kindly request you consider merging the fix into 71?

Thanks

O.K. Added the merge request tag. Release sheriffs will capture this.

This bug requires manual review: We are only 12 days from stable.
Please contact the milestone owner if you have questions.
Owners: benmason@(Android), kariahda@(iOS), kbleicher@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

As this is regressed in M70, M71 is very close to stable promotion and patch is not fully safe to merge per offline chat with  yoichio@, rejecting merge to M71.

At this stage we're ONLY taking absolutely critical and safe merges in. 

Thank you for trying.

 Issue 915732  has been merged into this issue.

 Issue 920584  has been merged into this issue.

 Issue 923419  has been merged into this issue.