[Athena] Extract Chrome OS authentication stack

chrome/browser/chromeos/login/helper.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/helper.h"
 
 #include "ash/shell.h"
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/users/user_manager.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/network/network_handler.h"
 #include "chromeos/network/network_state.h"
 #include "chromeos/network/network_state_handler.h"
-#include "google_apis/gaia/gaia_auth_util.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/screen.h"
 
 namespace chromeos {
 
@@ skipping 12 matching lines @@
   // 220px, used for the big preview on OOBE and Change Picture options page.
   static const int kBaseUserImageSize = 220;
   float scale_factor = gfx::Display::GetForcedDeviceScaleFactor();
   if (scale_factor > 1.0f)
     return static_cast<int>(scale_factor * kBaseUserImageSize);
   return kBaseUserImageSize * gfx::ImageSkia::GetMaxSupportedScale();
 }
 
 namespace login {
 
-std::string CanonicalizeUserID(const std::string& user_id) {
-  if (user_id == UserManager::kGuestUserName)
-    return user_id;
-  return gaia::CanonicalizeEmail(user_id);
-}
-
 bool LoginScrollIntoViewEnabled() {
   return !CommandLine::ForCurrentProcess()->HasSwitch(
       chromeos::switches::kDisableLoginScrollIntoView);
 }
 
 NetworkStateHelper::NetworkStateHelper() {}
 NetworkStateHelper::~NetworkStateHelper() {}
 
 base::string16 NetworkStateHelper::GetCurrentNetworkName() const {
   NetworkStateHandler* nsh = NetworkHandler::Get()->network_state_handler();
@@ skipping 24 matching lines @@
 bool NetworkStateHelper::IsConnecting() const {
   chromeos::NetworkStateHandler* nsh =
       chromeos::NetworkHandler::Get()->network_state_handler();
   return nsh->ConnectingNetworkByType(
       chromeos::NetworkTypePattern::Default()) != NULL;
 }
 
 }  // namespace login
 
 }  // namespace chromeos