Reland of Fetch ARC Kiosk app name and icon from Android side.

chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.cc

 // Copyright 2016 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/app_mode/arc/arc_kiosk_app_service.h>
 
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_utils.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_service.h"
+#include "ui/app_list/app_list_constants.h"
+#include "ui/base/layout.h"
+#include "ui/display/display.h"
+#include "ui/display/screen.h"
 #include "ui/message_center/message_center.h"
 #include "ui/message_center/notification_blocker.h"
 
 namespace chromeos {
 
 // Timeout maintenance session after 30 minutes.
 constexpr base::TimeDelta kArcKioskMaintenanceSessionTimeout =
     base::TimeDelta::FromMinutes(30);
 
 // Blocks all notifications for ARC Kiosk
@@ skipping 102 matching lines @@
   maintenance_timeout_timer_.Stop();
   maintenance_session_running_ = false;
   PreconditionsChanged();
 }
 
 void ArcKioskAppService::OnAppWindowLaunched() {
   if (delegate_)
     delegate_->OnAppWindowLaunched();
 }
 
+void ArcKioskAppService::OnIconUpdated(ArcAppIcon* icon) {
+  DCHECK_EQ(icon, app_icon_.get());
+  if (icon->image_skia().isNull()) {
+    app_icon_.release();
+    return;
+  }
+  app_manager_->UpdateNameAndIcon(app_info_->package_name, app_info_->name,
+                                  app_icon_->image_skia());
+}
+
 ArcKioskAppService::ArcKioskAppService(Profile* profile) : profile_(profile) {
   ArcAppListPrefs::Get(profile_)->AddObserver(this);
   app_manager_ = ArcKioskAppManager::Get();
   DCHECK(app_manager_);
   app_manager_->AddObserver(this);
   pref_change_registrar_.reset(new PrefChangeRegistrar());
   pref_change_registrar_->Init(profile_->GetPrefs());
   notification_blocker_.reset(new ArcKioskNotificationBlocker());
   PreconditionsChanged();
 }
 
 ArcKioskAppService::~ArcKioskAppService() {
   maintenance_timeout_timer_.Stop();
 }
 
+void ArcKioskAppService::RequestNameAndIconUpdate() {
+  // Request only once when app_icon_ is not initialized.
+  if (!app_info_ || !app_info_->ready || app_icon_)
+    return;
+  app_icon_ = base::MakeUnique<ArcAppIcon>(profile_, app_id_,
+                                           app_list::kGridIconDimension, this);
+  app_icon_->LoadForScaleFactor(ui::GetSupportedScaleFactor(
+      display::Screen::GetScreen()->GetPrimaryDisplay().device_scale_factor()));
+  // Name and icon are updated when icon is loaded in OnIconUpdated()
+}
+
 void ArcKioskAppService::PreconditionsChanged() {
   VLOG(2) << "Preconditions for kiosk app changed";
   app_id_ = GetAppId();
   if (app_id_.empty()) {
     VLOG(2) << "Kiosk app is not available";
     return;
   }
   app_info_ = ArcAppListPrefs::Get(profile_)->GetApp(app_id_);
   VLOG_IF(2, app_info_ && app_info_->ready) << "Kiosk app is ready";
   VLOG(2) << "Maintenance session is "
           << (maintenance_session_running_ ? "running" : "not running");
   VLOG(2) << "Kiosk app with id: " << app_id_ << " is "
           << (app_launcher_ ? "already launched" : "not yet launched");
   if (app_info_ && app_info_->ready && !maintenance_session_running_) {
     if (!app_launcher_) {
       VLOG(2) << "Starting kiosk app";
       app_launcher_ = base::MakeUnique<ArcKioskAppLauncher>(
           profile_, ArcAppListPrefs::Get(profile_), app_id_, this);
     }
   } else if (task_id_ != -1) {
     VLOG(2) << "Kiosk app should be closed";
     arc::CloseTask(task_id_);
   }
+  RequestNameAndIconUpdate();
 }
 
 std::string ArcKioskAppService::GetAppId() {
   AccountId account_id = multi_user_util::GetAccountIdFromProfile(profile_);
-  const ArcKioskAppManager::ArcKioskApp* app =
-      app_manager_->GetAppByAccountId(account_id);
+  const ArcKioskAppData* app = app_manager_->GetAppByAccountId(account_id);
   if (!app)
     return std::string();
   std::unordered_set<std::string> app_ids =
-      ArcAppListPrefs::Get(profile_)->GetAppsForPackage(
-          app->app_info().package_name());
+      ArcAppListPrefs::Get(profile_)->GetAppsForPackage(app->app_id());
   if (app_ids.empty())
     return std::string();
   // TODO(poromov@): Choose appropriate app id to launch. See
   // http://crbug.com/665904
   return std::string(*app_ids.begin());
 }
 
 }  // namespace chromeos