PlaceHolder in TextArea should allow carriage return and line feed

PlaceHolder in TextArea should allow carriage return and line feed

As per current spec, placeholder should allow carriage return and line feed for text area. While placeholder should strip carriage return and line feed for input type=text.

BUG=367632
R=tkent, keishi1
TEST=Placeholder containing CR and LF are not stripped from the text for
type text area, while for input type text it is stripped.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=173455

[Habib Virji, 2014-04-28 15:59:25]

Updated as per spec, where text area placeholder should be rendered with CR and
LF:
http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-elemen...

But for input element, it should strip CR and LF:
http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-elem...

Patch removes strip text for text area.

[tkent, 2014-04-29 23:39:02]

We should have a rendering test.  It should contain CR-only case and LF-only
case too.

[Habib Virji, 2014-05-01 15:56:23]

On 2014/04/29 23:39:02, tkent (ooo until May 6) wrote:
> We should have a rendering test.  It should contain CR-only case and LF-only
> case too.

Added rendering and CR only case. I have kept old test as it was more clear in
terms of output.

[tkent, 2014-05-07 00:14:11]

lgtm

[commit-bot: I haz the power, 2014-05-07 00:14:48]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/habib.virji@samsung.com/253853002/20001

[commit-bot: I haz the power, 2014-05-07 01:22:20]

Change committed as 173455