Don't collapse whitespace in contenteditable=plaintext-only.

Don't collapse whitespace in contenteditable=plaintext-only.

Rewrite white-space property for contenteditable=plaintext-only elements as:
    normal   -> pre-wrap
    nowrap   -> pre
    pre-line -> pre-wrap
because whitespace collapsing doesn't make sense in plain-text editing.
The new behavior matches to Microsoft Edge for TEXTAREA.

BUG=595491
Committed: https://crrev.com/73a59b847f8b048bf26d7806bafa403c8f3f95d6
Cr-Commit-Position: refs/heads/master@{#381668}

[tkent, 2016-03-17 04:14:42]

Description was changed from

==========
Don't collapse whitespace in contenteditable=plaintext-only.

BUG=595491
==========

to

==========
Don't collapse whitespace in contenteditable=plaintext-only.

Rewrite white-space property for contenteditable=plaintext-only elements as:
    normal   -> pre-wrap
    nowrap   -> pre
    pre-line -> pre-wrap
because whitespace collapsing doesn't make sense in plain-text editing.
The new behavior matches to Microsoft Edge for TEXTAREA.

BUG=595491
==========

[tkent, 2016-03-17 05:19:44]

Patchset #1 (id:1) has been deleted

[tkent, 2016-03-17 05:59:02]

tkent@chromium.org changed reviewers:
+ yosin@chromium.org

[tkent, 2016-03-17 05:59:03]

yosin@, would you review this please?

[yosin_UTC9, 2016-03-17 06:51:14]

The CQ bit was checked by yosin@chromium.org

[yosin_UTC9, 2016-03-17 06:51:14]

lgtm

[commit-bot: I haz the power, 2016-03-17 06:51:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1813663002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1813663002/20001

[commit-bot: I haz the power, 2016-03-17 07:49:21]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2016-03-17 07:51:07]

Description was changed from

==========
Don't collapse whitespace in contenteditable=plaintext-only.

Rewrite white-space property for contenteditable=plaintext-only elements as:
    normal   -> pre-wrap
    nowrap   -> pre
    pre-line -> pre-wrap
because whitespace collapsing doesn't make sense in plain-text editing.
The new behavior matches to Microsoft Edge for TEXTAREA.

BUG=595491
==========

to

==========
Don't collapse whitespace in contenteditable=plaintext-only.

Rewrite white-space property for contenteditable=plaintext-only elements as:
    normal   -> pre-wrap
    nowrap   -> pre
    pre-line -> pre-wrap
because whitespace collapsing doesn't make sense in plain-text editing.
The new behavior matches to Microsoft Edge for TEXTAREA.

BUG=595491

Committed: https://crrev.com/73a59b847f8b048bf26d7806bafa403c8f3f95d6
Cr-Commit-Position: refs/heads/master@{#381668}
==========

[commit-bot: I haz the power, 2016-03-17 07:51:08]

Patchset 1 (id:??) landed as
https://crrev.com/73a59b847f8b048bf26d7806bafa403c8f3f95d6
Cr-Commit-Position: refs/heads/master@{#381668}