Wait for pending extensions before launching kiosk app.

chrome/browser/chromeos/app_mode/startup_app_launcher.cc

 // Copyright 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/chromeos/app_mode/startup_app_launcher.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/path_service.h"
@@ skipping 254 matching lines @@
           FROM_HERE,
           base::Bind(&StartupAppLauncher::MaybeInitializeNetwork, AsWeakPtr()));
       return;
     }
     OnLaunchFailure(KioskAppLaunchError::UNABLE_TO_LAUNCH);
   }
 }
 
 void StartupAppLauncher::OnFinishCrxInstall(const std::string& extension_id,
                                             bool success) {
-  if (extension_id != app_id_)
+  // Wait for pending updates or dependent extensions to download.
+  if (extensions::ExtensionSystem::Get(profile_)
+          ->extension_service()
+          ->pending_extension_manager()
+          ->HasPendingExtensions()) {
     return;
+  }
 
   extensions::InstallTracker* tracker =
       extensions::InstallTrackerFactory::GetForBrowserContext(profile_);
   tracker->RemoveObserver(this);
   if (delegate_->IsShowingNetworkConfigScreen()) {
     LOG(WARNING) << "Showing network config screen";
     return;
   }
 
   if (success) {
@@ skipping 103 matching lines @@
   UpdateAppData();
   delegate_->OnReadyToLaunch();
 }
 
 void StartupAppLauncher::UpdateAppData() {
   KioskAppManager::Get()->ClearAppData(app_id_);
   KioskAppManager::Get()->UpdateAppDataFromProfile(app_id_, profile_, NULL);
 }
 
 }   // namespace chromeos