[Easy signin] Add method to get user info to easyUnlockPrivate

chrome/browser/signin/easy_unlock_screenlock_state_handler.cc

 // Copyright 2014 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/signin/easy_unlock_screenlock_state_handler.h"
 
 #include "base/bind.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 134 matching lines @@
 void EasyUnlockScreenlockStateHandler::OnScreenDidLock() {
   State last_state = state_;
   // This should force updating screenlock state.
   state_ = STATE_INACTIVE;
   ChangeState(last_state);
 }
 
 void EasyUnlockScreenlockStateHandler::OnScreenDidUnlock() {
 }
 
+void EasyUnlockScreenlockStateHandler::OnFocusedUserChanged(
+    const std::string& user_id) {
+}
+
 void EasyUnlockScreenlockStateHandler::UpdateTooltipOptions(
     bool trial_run,
     ScreenlockBridge::UserPodCustomIconOptions* icon_options) {
   size_t resource_id = 0;
   base::string16 device_name;
   if (trial_run && state_ == STATE_AUTHENTICATED) {
     resource_id = IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_TUTORIAL;
   } else {
     resource_id = GetTooltipResourceId(state_);
     if (TooltipContainsDeviceType(state_))
@@ skipping 50 matching lines @@
         l10n_util::GetStringUTF16(
             IDS_EASY_UNLOCK_SCREENLOCK_USER_POD_AUTH_VALUE));
   } else if (screenlock_bridge_->lock_handler()->GetAuthType(user_email_) !=
                  ScreenlockBridge::LockHandler::OFFLINE_PASSWORD) {
     screenlock_bridge_->lock_handler()->SetAuthType(
         user_email_,
         ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
         base::string16());
   }
 }