[Smart Lock] Measure clicks on the lock icon during Easy Unlock's trial run.

chrome/browser/ui/webui/chromeos/login/user_board_screen_handler.cc

 // Copyright (c) 2013 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/ui/webui/chromeos/login/user_board_screen_handler.h"
 
 #include "chrome/browser/chromeos/login/ui/models/user_board_model.h"
 #include "components/login/localized_values_builder.h"
 
 namespace chromeos {
 
 UserBoardScreenHandler::UserBoardScreenHandler() : model_(nullptr) {
 }
 
 UserBoardScreenHandler::~UserBoardScreenHandler() {
 }
 
 void UserBoardScreenHandler::DeclareLocalizedValues(
     ::login::LocalizedValuesBuilder* builder) {
 }
 
 void UserBoardScreenHandler::RegisterMessages() {
   AddCallback("getUsers", &UserBoardScreenHandler::HandleGetUsers);
   AddCallback("attemptUnlock", &UserBoardScreenHandler::HandleAttemptUnlock);
   AddCallback("hardlockPod", &UserBoardScreenHandler::HandleHardlockPod);
+  AddCallback("recordClickOnLockIcon",
+              &UserBoardScreenHandler::HandleRecordClickOnLockIcon);
 }
 
 void UserBoardScreenHandler::Initialize() {
 }
 
 //----------------- Handlers
 
 void UserBoardScreenHandler::HandleGetUsers() {
   CHECK(model_);
   model_->SendUserList();
 }
 
 void UserBoardScreenHandler::HandleHardlockPod(const std::string& user_id) {
   CHECK(model_);
   model_->HardLockPod(user_id);
 }
 
 void UserBoardScreenHandler::HandleAttemptUnlock(const std::string& user_id) {
   CHECK(model_);
   model_->AttemptEasyUnlock(user_id);
 }
 
+void UserBoardScreenHandler::HandleRecordClickOnLockIcon(
+    const std::string& user_id) {
+  CHECK(model_);
+  model_->RecordClickOnLockIcon(user_id);
+}
+
 //----------------- API
 
 void UserBoardScreenHandler::SetPublicSessionDisplayName(
     const std::string& user_id,
     const std::string& display_name) {
   CallJS("login.AccountPickerScreen.setPublicSessionDisplayName", user_id,
          display_name);
 }
 
 void UserBoardScreenHandler::SetPublicSessionLocales(
@@ skipping 31 matching lines @@
   model_ = &model;
   BaseScreenHandler::SetBaseScreen(model_);
 }
 
 void UserBoardScreenHandler::Unbind() {
   model_ = nullptr;
   BaseScreenHandler::SetBaseScreen(nullptr);
 }
 
 }  // namespace chromeos