ChromeOS: Remove Profile::IsLoginProfile.

ChromeOS: Remove Profile::IsLoginProfile.

IsLoginProfile is based on ProfileHelper::IsSigninProfile.
There is no obvious/good reason why IsLoginProfile is additionally required. Even worse, IsLoginProfile is implemented by every subclass of Profile and is inconsistent to ProfileHelper::IsSigninProfile and to Profile::GetPath().

BUG=312660
(For Fake-/TestingProfile)

R=davemoore@google.com, nkostylev@chromium.org
TBR=ben@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=233263

[pneubeck (no reviews), 2013-10-31 18:48:03]

@Mitsuru, FYI

@David, you reviewed the addition of Profile::IsLoginProfile, please also take a
look at this removal.

@Nikita, PTAL at ProfileHelper.

[pneubeck (no reviews), 2013-11-05 11:56:52]

On 2013/10/31 18:48:03, pneubeck wrote:
> @Mitsuru, FYI
> 
> @David, you reviewed the addition of Profile::IsLoginProfile, please also take
a
> look at this removal.
> 
> @Nikita, PTAL at ProfileHelper.

friendly ping.

[davemoore (google), 2013-11-05 17:51:35]

lgtm

[pneubeck (no reviews), 2013-11-05 18:10:41]

On 2013/11/05 17:51:35, davemoore (google) wrote:
> lgtm

I think this was from the wrong account (@google instead of @chromium) :-)

[Nikita (slow), 2013-11-05 18:15:56]

lgtm, thanks for the cleanup!

[commit-bot: I haz the power, 2013-11-05 20:05:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pneubeck@chromium.org/47923016/1

[commit-bot: I haz the power, 2013-11-05 22:15:10]

Retried try job too often on linux_rel for step(s) interactive_ui_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[commit-bot: I haz the power, 2013-11-05 22:40:55]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pneubeck@chromium.org/47923016/1

[commit-bot: I haz the power, 2013-11-06 00:52:44]

Retried try job too often on win_rel for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2013-11-06 09:28:32]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pneubeck@chromium.org/47923016/1

[commit-bot: I haz the power, 2013-11-06 13:11:59]

Retried try job too often on win_rel for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[pneubeck (no reviews), 2013-11-06 13:25:00]

Committed patchset #2 manually as r233263 (presubmit successful).