Revert of Made surrounding text work for last word in a document

Revert of Made surrounding text work for last word in a document (patchset #5 id:80001 of https://codereview.chromium.org/2928073002/ )

Reason for revert:
This has caused the surrounding-text.html layout test to start failing on some bots. See for example:

https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linux%20Trusty/builds/28157

Original issue's description:
> Made surrounding text work for last word in a document
> 
> The surrounding text algorithm did not proceed if the range
> between the end of selection and the end of document had zero
> length. Current CL removes this restriction.
> 
> BUG=
> 
> Review-Url: https://codereview.chromium.org/2928073002
> Cr-Commit-Position: refs/heads/master@{#482719}
> Committed: https://chromium.googlesource.com/chromium/src/+/445e7e4dc4bb49245a40b102bf3b3906dfcd6661

TBR=yosin@chromium.org,amaralp@chromium.org,timav@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2955973007
Cr-Commit-Position: refs/heads/master@{#482839}
Committed: https://chromium.googlesource.com/chromium/src/+/95e377e8e0851d2d5fa089036b0e24a1a75f89c6

[benwells, 2017-06-28 01:16:15]

The CQ bit was checked by benwells@chromium.org

[benwells, 2017-06-28 01:16:15]

Created Revert of Made surrounding text work for last word in a document

[commit-bot: I haz the power, 2017-06-28 01:16:47]

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, 2017-06-28 01:17:05]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1498612575223110, "parent_rev":
"f789a6236652537285fc13dac4cce609e1b94f55", "commit_rev":
"95e377e8e0851d2d5fa089036b0e24a1a75f89c6"}

[commit-bot: I haz the power, 2017-06-28 01:17:19]

Description was changed from

==========
Revert of Made surrounding text work for last word in a document (patchset #5
id:80001 of https://codereview.chromium.org/2928073002/ )

Reason for revert:
This has caused the surrounding-text.html layout test to start failing on some
bots. See for example:

https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linu...

Original issue's description:
> Made surrounding text work for last word in a document
> 
> The surrounding text algorithm did not proceed if the range
> between the end of selection and the end of document had zero
> length. Current CL removes this restriction.
> 
> BUG=
> 
> Review-Url: https://codereview.chromium.org/2928073002
> Cr-Commit-Position: refs/heads/master@{#482719}
> Committed:
https://chromium.googlesource.com/chromium/src/+/445e7e4dc4bb49245a40b102bf3b...

TBR=yosin@chromium.org,amaralp@chromium.org,timav@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of Made surrounding text work for last word in a document (patchset #5
id:80001 of https://codereview.chromium.org/2928073002/ )

Reason for revert:
This has caused the surrounding-text.html layout test to start failing on some
bots. See for example:

https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linu...

Original issue's description:
> Made surrounding text work for last word in a document
> 
> The surrounding text algorithm did not proceed if the range
> between the end of selection and the end of document had zero
> length. Current CL removes this restriction.
> 
> BUG=
> 
> Review-Url: https://codereview.chromium.org/2928073002
> Cr-Commit-Position: refs/heads/master@{#482719}
> Committed:
https://chromium.googlesource.com/chromium/src/+/445e7e4dc4bb49245a40b102bf3b...

TBR=yosin@chromium.org,amaralp@chromium.org,timav@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2955973007
Cr-Commit-Position: refs/heads/master@{#482839}
Committed:
https://chromium.googlesource.com/chromium/src/+/95e377e8e0851d2d5fa089036b0e...
==========

[commit-bot: I haz the power, 2017-06-28 01:17:20]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/95e377e8e0851d2d5fa089036b0e...