Revert of Update TextSelection for non-user initiated events

Revert of Update TextSelection for non-user initiated events (patchset #7 id:120001 of https://codereview.chromium.org/2856093003/ )

Reason for revert:
We started to seeing terribly flaky ImeTest on Android after this commit (crbug.com/725532), so try reverting this one.

Original issue's description:
> Update TextSelection for non-user initiated events
> 
> This makes Chromium Content API to be able to notify about text
> selection changes triggered by non-user events (eg. JavaScript, IME,
> autofill).
> 
> R=creis@chromium.org,nasko@chromium.org,ekaramad@chromium.org
> BUG=671986
> TEST=interactive_ui_tests
> --gtest_filter=SitePerProcessTextInputManagerTest.NonUserInitiatedTextSelection
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
> 
> Review-Url: https://codereview.chromium.org/2856093003
> Cr-Commit-Position: refs/heads/master@{#473834}
> Committed: https://chromium.googlesource.com/chromium/src/+/d48794b9728276c1183b0c56f8cb7afe71b7bca4

TBR=creis@chromium.org,ekaramad@chromium.org,nasko@chromium.org,thestig@chromium.org,pvarga@inf.u-szeged.hu
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=671986
Review-Url: https://codereview.chromium.org/2901093003
Cr-Commit-Position: refs/heads/master@{#474009}
Committed: https://chromium.googlesource.com/chromium/src/+/44664cdc94553b40ccb9979ed4a99b57453b4de6

[Changwan Ryu, 2017-05-23 19:13:13]

The CQ bit was checked by changwan@chromium.org

[Changwan Ryu, 2017-05-23 19:13:13]

Created Revert of Update TextSelection for non-user initiated events

[commit-bot: I haz the power, 2017-05-23 19:13:48]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-23 19:14:39]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495566793553590, "parent_rev":
"72d995cf2cc67c9c8aa7164f6d72d7aa3380a35c", "commit_rev":
"44664cdc94553b40ccb9979ed4a99b57453b4de6"}

[commit-bot: I haz the power, 2017-05-23 19:14:51]

Description was changed from

==========
Revert of Update TextSelection for non-user initiated events (patchset #7
id:120001 of https://codereview.chromium.org/2856093003/ )

Reason for revert:
We started to seeing terribly flaky ImeTest on Android after this commit
(crbug.com/725532), so try reverting this one.

Original issue's description:
> Update TextSelection for non-user initiated events
> 
> This makes Chromium Content API to be able to notify about text
> selection changes triggered by non-user events (eg. JavaScript, IME,
> autofill).
> 
> R=creis@chromium.org,nasko@chromium.org,ekaramad@chromium.org
> BUG=671986
> TEST=interactive_ui_tests
>
--gtest_filter=SitePerProcessTextInputManagerTest.NonUserInitiatedTextSelection
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
> 
> Review-Url: https://codereview.chromium.org/2856093003
> Cr-Commit-Position: refs/heads/master@{#473834}
> Committed:
https://chromium.googlesource.com/chromium/src/+/d48794b9728276c1183b0c56f8cb...

TBR=creis@chromium.org,ekaramad@chromium.org,nasko@chromium.org,thestig@chrom...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=671986
==========

to

==========
Revert of Update TextSelection for non-user initiated events (patchset #7
id:120001 of https://codereview.chromium.org/2856093003/ )

Reason for revert:
We started to seeing terribly flaky ImeTest on Android after this commit
(crbug.com/725532), so try reverting this one.

Original issue's description:
> Update TextSelection for non-user initiated events
> 
> This makes Chromium Content API to be able to notify about text
> selection changes triggered by non-user events (eg. JavaScript, IME,
> autofill).
> 
> R=creis@chromium.org,nasko@chromium.org,ekaramad@chromium.org
> BUG=671986
> TEST=interactive_ui_tests
>
--gtest_filter=SitePerProcessTextInputManagerTest.NonUserInitiatedTextSelection
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
> 
> Review-Url: https://codereview.chromium.org/2856093003
> Cr-Commit-Position: refs/heads/master@{#473834}
> Committed:
https://chromium.googlesource.com/chromium/src/+/d48794b9728276c1183b0c56f8cb...

TBR=creis@chromium.org,ekaramad@chromium.org,nasko@chromium.org,thestig@chrom...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=671986

Review-Url: https://codereview.chromium.org/2901093003
Cr-Commit-Position: refs/heads/master@{#474009}
Committed:
https://chromium.googlesource.com/chromium/src/+/44664cdc94553b40ccb9979ed4a9...
==========

[commit-bot: I haz the power, 2017-05-23 19:14:53]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/44664cdc94553b40ccb9979ed4a9...