mash: Serialize ShelfIDs for property conversion and transport.

chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.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/ui/ash/launcher/arc_app_window_launcher_controller.h"
 
 #include <string>
 
 #include "ash/display/screen_orientation_controller_chromeos.h"
 #include "ash/public/cpp/window_properties.h"
 #include "ash/shared/app_types.h"
@@ skipping 400 matching lines @@
     return;
   }
 
   views::Widget* widget = views::Widget::GetWidgetForNativeWindow(window);
   DCHECK(widget);
   DCHECK(!info->app_window());
   info->set_app_window(
       base::MakeUnique<AppWindow>(task_id, info->app_shelf_id(), widget, this));
   RegisterApp(info);
   DCHECK(info->app_window()->controller());
-  window->SetProperty(ash::kShelfIDKey,
-                      new ash::ShelfID(info->app_window()->shelf_id()));
+  const ash::ShelfID shelf_id(info->app_window()->shelf_id());
+  window->SetProperty(ash::kShelfIDKey, new std::string(shelf_id.Serialize()));
   if (ash::Shell::Get()
           ->maximize_mode_controller()
           ->IsMaximizeModeWindowManagerEnabled()) {
     SetOrientationLockForAppWindow(info->app_window());
   }
 }
 
 void ArcAppWindowLauncherController::OnAppReadyChanged(
     const std::string& arc_app_id,
     bool ready) {
@@ skipping 300 matching lines @@
   const std::string arc_app_id = exo::ShellSurface::GetApplicationId(window);
   if (arc_app_id.empty())
     return -1;
 
   int task_id = -1;
   if (sscanf(arc_app_id.c_str(), "org.chromium.arc.%d", &task_id) != 1)
     return -1;
 
   return task_id;
 }