Revert of Use FrameSelection::selectedText where possible.

Revert of Use FrameSelection::selectedText where possible. (patchset #6 id:100001 of https://codereview.chromium.org/1377963004/ )

Reason for revert:
Regressed speedometer significantly.  crbug.com/546248

Original issue's description:
> Use FrameSelection::selectedText where possible.
>
> Substitute occurrences of selection -> range -> (text or html) conversions with
> direct selection -> (text or html) conversions using existing functions.
>
> BUG=
>
> Committed: https://crrev.com/9c2436064ebdcb9192dfacac96944f2753a2ce78
> Cr-Commit-Position: refs/heads/master@{#355247}

TBR=yosin@chromium.org,kotenkov@yandex-team.ru
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=546248
Committed: https://crrev.com/8ac1269525fdc94fc222e24ccfdfd8b93a9c7cc5
Cr-Commit-Position: refs/heads/master@{#355661}

[tkent, 2015-10-22 22:45:45]

Created Revert of Use FrameSelection::selectedText where possible.

[commit-bot: I haz the power, 2015-10-22 22:45:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1417363002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1417363002/1

[tkent, 2015-10-22 22:46:01]

Description was changed from

==========
Revert of Use FrameSelection::selectedText where possible. (patchset #6
id:100001 of https://codereview.chromium.org/1377963004/ )

Reason for revert:
Regressed speedometer significantly.  crbug.com/546248


Original issue's description:
> Use FrameSelection::selectedText where possible.
> 
> Substitute occurrences of selection -> range -> (text or html) conversions
with
> direct selection -> (text or html) conversions using existing functions.
> 
> BUG=
> 
> Committed: https://crrev.com/9c2436064ebdcb9192dfacac96944f2753a2ce78
> Cr-Commit-Position: refs/heads/master@{#355247}

TBR=yosin@chromium.org,kotenkov@yandex-team.ru
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of Use FrameSelection::selectedText where possible. (patchset #6
id:100001 of https://codereview.chromium.org/1377963004/ )

Reason for revert:
Regressed speedometer significantly.  crbug.com/546248


Original issue's description:
> Use FrameSelection::selectedText where possible.
> 
> Substitute occurrences of selection -> range -> (text or html) conversions
with
> direct selection -> (text or html) conversions using existing functions.
> 
> BUG=
> 
> Committed: https://crrev.com/9c2436064ebdcb9192dfacac96944f2753a2ce78
> Cr-Commit-Position: refs/heads/master@{#355247}

TBR=yosin@chromium.org,kotenkov@yandex-team.ru
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=546248
==========

[commit-bot: I haz the power, 2015-10-22 22:47:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-22 22:48:35]

Patchset 1 (id:??) landed as
https://crrev.com/8ac1269525fdc94fc222e24ccfdfd8b93a9c7cc5
Cr-Commit-Position: refs/heads/master@{#355661}