As per comment#0 considering it as feature and marking it as untriaged.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4d527503af5b132e53868710ec393f74e48e50ef

commit 4d527503af5b132e53868710ec393f74e48e50ef
Author: Jose Dapena Paz <jose.dapena@lge.com>
Date: Tue Nov 14 16:18:37 2017

Export AtkHyperlinkImpl and AtkHyperlink for link role.

On ATK accessibility model, embedded hyperlinks accessibility nodes should
be exposed as ATK objects implementing AtkHyperlinkImpl interface. This
interface should provide the get_hyperlink method that returns an
AtkHyperlink object with the hyperlink URL and status.

This implementation is equivalent to the one found in Firefox and in
WebKitGTK: it will return always one anchor, that will point to the
link embedding object.

It does not implement the get_start_index and get_end_index yet.

Bug:  783447 
Change-Id: I72163b1cce18c7cc3c8f732d5eaa45987b86a420
Reviewed-on: https://chromium-review.googlesource.com/762316
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516318}
[modify] https://crrev.com/4d527503af5b132e53868710ec393f74e48e50ef/content/browser/BUILD.gn
[add] https://crrev.com/4d527503af5b132e53868710ec393f74e48e50ef/content/browser/accessibility/browser_accessibility_atk_hyperlink.cc
[add] https://crrev.com/4d527503af5b132e53868710ec393f74e48e50ef/content/browser/accessibility/browser_accessibility_atk_hyperlink.h
[modify] https://crrev.com/4d527503af5b132e53868710ec393f74e48e50ef/content/browser/accessibility/browser_accessibility_auralinux.cc
[modify] https://crrev.com/4d527503af5b132e53868710ec393f74e48e50ef/content/browser/accessibility/browser_accessibility_auralinux.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b1622826665b8e03c6732bb8ecdb16ed736cc358

commit b1622826665b8e03c6732bb8ecdb16ed736cc358
Author: Mostyn Bramley-Moore <mostynb@vewd.com>
Date: Wed Nov 15 07:05:13 2017

[jumbo] avoid ToBrowserAccessibilityAuraLinux redefinition

Followup to https://chromium-review.googlesource.com/762316

Bug:  783447 ,746953
Change-Id: I7935a609ff9f460d02a1373c0e4528887dcd8955
Reviewed-on: https://chromium-review.googlesource.com/769948
Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Mostyn Bramley-Moore <mostynb@vewd.com>
Cr-Commit-Position: refs/heads/master@{#516620}
[modify] https://crrev.com/b1622826665b8e03c6732bb8ecdb16ed736cc358/content/browser/accessibility/browser_accessibility_atk_hyperlink.cc
[modify] https://crrev.com/b1622826665b8e03c6732bb8ecdb16ed736cc358/content/browser/accessibility/browser_accessibility_auralinux.cc
[modify] https://crrev.com/b1622826665b8e03c6732bb8ecdb16ed736cc358/content/browser/accessibility/browser_accessibility_auralinux.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6fe385870629d143c8c737ac061393b8b9aa7025

commit 6fe385870629d143c8c737ac061393b8b9aa7025
Author: Jose Dapena Paz <jose.dapena@lge.com>
Date: Fri Nov 17 18:33:04 2017

Fix ATK hyperlink action castings.

This is a fix for a regression introduced by this jumbo fix:
    commit b1622826665b8e03c6732bb8ecdb16ed736cc358
    Author: Mostyn Bramley-Moore <mostynb@vewd.com>
    Date:   Wed Nov 15 07:05:13 2017 +0000

    [jumbo] avoid ToBrowserAccessibilityAuraLinux redefinition

The change reuses the BrowserAccessibilityAuraLinux AtkAction
casting for BrowserAccessibilityAtkHyperlink. But it is not the
same object, and it will break the hyperlink action support. So
let's provide again a specific casting, but with a name that will
not clash with jumbo build.

Bug:  783447 
Change-Id: I319154aadd5aa040a2222d533ca94cb83877068e
Reviewed-on: https://chromium-review.googlesource.com/776778
Reviewed-by: Mostyn Bramley-Moore <mostynb@vewd.com>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: José Dapena Paz <jose.dapena@lge.com>
Cr-Commit-Position: refs/heads/master@{#517484}
[modify] https://crrev.com/6fe385870629d143c8c737ac061393b8b9aa7025/content/browser/accessibility/browser_accessibility_atk_hyperlink.cc