Add mash shelf application id support.

mash/wm/property_util.cc

 // Copyright 2015 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 "mash/wm/property_util.h"
 
 #include <stdint.h>
 
 #include "components/mus/public/cpp/property_type_converters.h"
 #include "components/mus/public/cpp/window_property.h"
@@ skipping 131 matching lines @@
 mojo::Array<uint8_t> GetWindowAppIcon(const mus::Window* window) {
   if (window->HasSharedProperty(
           mus::mojom::WindowManager::kWindowAppIcon_Property)) {
     return mojo::Array<uint8_t>::From(
         window->GetSharedProperty<std::vector<uint8_t>>(
             mus::mojom::WindowManager::kWindowAppIcon_Property));
   }
   return mojo::Array<uint8_t>();
 }
 
+void SetAppID(mus::Window* window, const base::string16& app_id) {
+  window->SetSharedProperty<base::string16>(
+      mus::mojom::WindowManager::kAppID_Property, app_id);
+}
+
+base::string16 GetAppID(const mus::Window* window) {
+  if (!window->HasSharedProperty(mus::mojom::WindowManager::kAppID_Property))
+    return base::string16();
+
+  return window->GetSharedProperty<base::string16>(
+      mus::mojom::WindowManager::kAppID_Property);
+}
+
 }  // namespace wm
 }  // namespace mash