Only call TextChanged on existing AXObjects. This avoids triggering the code which calls UpdateDist…

Only call TextChanged on existing AXObjects. This avoids triggering the code which calls UpdateDistribution as part of creating a new AXObject, which was causing issues.

This change should cause no behaviour changes, as in cases where an AXObject needs to be created for a text node, its parent will also have a ChildrenChanged notification fired on it, which will cause the appropriate updates to fire.

Reverts https://codereview.chromium.org/2926713002/ as the code which causes UpdateDistribution to be called should never run with this change, so we don't need to check whether distribution is dirty any more.

BUG=729229, 732200, 734348
Review-Url: https://codereview.chromium.org/2939933002
Cr-Original-Commit-Position: refs/heads/master@{#480792}
Review-Url: https://codereview.chromium.org/2957733002 .
Cr-Commit-Position: refs/branch-heads/3112@{#464}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/303e0e83015674dec5bf2fc1a5eafe2871e867ee

[kochi, 2017-06-26 04:55:59]

Description was changed from

==========
Only call TextChanged on existing AXObjects. This avoids triggering the code
which calls UpdateDistribution as part of creating a new AXObject, which was
causing issues.

This change should cause no behaviour changes, as in cases where an AXObject
needs to be created for a text node, its parent will also have a ChildrenChanged
notification fired on it, which will cause the appropriate updates to fire.

Reverts https://codereview.chromium.org/2926713002/ as the code which causes
UpdateDistribution to be called should never run with this change, so we don't
need to check whether distribution is dirty any more.

BUG=729229,732200,734348

Review-Url: https://codereview.chromium.org/2939933002
Cr-Commit-Position: refs/heads/master@{#480792}
(cherry picked from commit 0011b9db970f1203f59c4e1b1b52fcdd2035101e)
==========

to

==========
Only call TextChanged on existing AXObjects. This avoids triggering the code
which calls UpdateDistribution as part of creating a new AXObject, which was
causing issues.

This change should cause no behaviour changes, as in cases where an AXObject
needs to be created for a text node, its parent will also have a ChildrenChanged
notification fired on it, which will cause the appropriate updates to fire.

Reverts https://codereview.chromium.org/2926713002/ as the code which causes
UpdateDistribution to be called should never run with this change, so we don't
need to check whether distribution is dirty any more.

BUG=729229,732200,734348

Review-Url: https://codereview.chromium.org/2939933002
Cr-Original-Commit-Position: refs/heads/master@{#480792}
Review-Url: https://codereview.chromium.org/2957733002 .
Cr-Commit-Position: refs/branch-heads/3112@{#464}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/303e0e83015674dec5bf2fc1a5ea...
==========

[kochi, 2017-06-26 04:56:00]

Committed patchset #1 (id:1) manually as
303e0e83015674dec5bf2fc1a5eafe2871e867ee.