Revert of Extract LoginPerformer to chromeos/auth

Revert of Extract LoginPerformer to chromeos/auth (patchset #8 id:140001 of https://codereview.chromium.org/614973002/)

Reason for revert:
Introduces new crashes: crbug.com/426522

Original issue's description:
> Extract LoginPerformer to chromeos/auth
> 
> BUG=387613
> R=nkostylev@chromium.org
> 
> Committed: https://crrev.com/2ec6339f32455ab40a9ada24ee8a38e396dca9fb
> Cr-Commit-Position: refs/heads/master@{#300489}

TBR=antrim@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=387613

[Nikita (slow), 2014-10-25 19:12:14]

Created Revert of Extract LoginPerformer to chromeos/auth

[commit-bot: I haz the power, 2014-10-25 19:12:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/681593003/1

[commit-bot: I haz the power, 2014-10-25 19:13:18]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-10-25 19:13:24]

Failed to apply patch for
chrome/browser/chromeos/login/existing_user_controller.cc:
While running git apply --index -3 -p1;
  error: patch failed:
chrome/browser/chromeos/login/existing_user_controller.cc:29
  Falling back to three-way merge...
  Applied patch to 'chrome/browser/chromeos/login/existing_user_controller.cc'
with conflicts.
  U chrome/browser/chromeos/login/existing_user_controller.cc

Patch:       chrome/browser/chromeos/login/existing_user_controller.cc
Index: chrome/browser/chromeos/login/existing_user_controller.cc
diff --git a/chrome/browser/chromeos/login/existing_user_controller.cc
b/chrome/browser/chromeos/login/existing_user_controller.cc
index
1e969ed6d61e2167399d2e2eecfc48d789bf34c1..e6c79a7488ecb1f451d29521e114c282f7780681
100644
--- a/chrome/browser/chromeos/login/existing_user_controller.cc
+++ b/chrome/browser/chromeos/login/existing_user_controller.cc
@@ -29,7 +29,6 @@
 #include "chrome/browser/chromeos/customization_document.h"
 #include "chrome/browser/chromeos/first_run/first_run.h"
 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_settings.h"
-#include "chrome/browser/chromeos/login/auth/chrome_login_performer.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
@@ -461,7 +460,7 @@
   if (!login_performer_.get() || num_login_attempts_ <= 1) {
     // Only one instance of LoginPerformer should exist at a time.
     login_performer_.reset(NULL);
-    login_performer_.reset(new ChromeLoginPerformer(this));
+    login_performer_.reset(new LoginPerformer(this));
   }
 
   is_login_in_progress_ = true;
@@ -486,7 +485,7 @@
 
   // Only one instance of LoginPerformer should exist at a time.
   login_performer_.reset(NULL);
-  login_performer_.reset(new ChromeLoginPerformer(this));
+  login_performer_.reset(new LoginPerformer(this));
   is_login_in_progress_ = true;
   login_performer_->LoginRetailMode();
   SendAccessibilityAlert(
@@ -541,7 +540,7 @@
 
   // Only one instance of LoginPerformer should exist at a time.
   login_performer_.reset(NULL);
-  login_performer_.reset(new ChromeLoginPerformer(this));
+  login_performer_.reset(new LoginPerformer(this));
   is_login_in_progress_ = true;
   login_performer_->LoginOffTheRecord();
   SendAccessibilityAlert(
@@ -1255,7 +1254,7 @@
     const UserContext& user_context) {
   // Only one instance of LoginPerformer should exist at a time.
   login_performer_.reset(NULL);
-  login_performer_.reset(new ChromeLoginPerformer(this));
+  login_performer_.reset(new LoginPerformer(this));
   is_login_in_progress_ = true;
   login_performer_->LoginAsPublicSession(user_context);
   SendAccessibilityAlert(

[commit-bot: I haz the power, 2014-10-25 19:13:37]

The CQ bit was unchecked by commit-bot@chromium.org

[Nikita (slow), 2014-10-25 19:14:33]

I'm going to revert manually to resolve conflicts.

[Nikita (slow), 2014-10-25 19:28:34]

On 2014/10/25 19:14:33, Nikita Kostylev wrote:
> I'm going to revert manually to resolve conflicts.

Not doing revert after all, see
https://code.google.com/p/chromium/issues/detail?id=426522#c9