Add WindowPinType property on arua::Window

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc

Index: chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
diff --git a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
index e3a1f4b8a24225a30cde42b716f26911f2bea5ef..2e1474dc43da2b62f1ffb2e0fd5ba39bcdf795d9 100644
--- a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
+++ b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
@@ -5,7 +5,9 @@
 #include "chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h"
 
 #include "ash/public/cpp/mus_property_mirror_ash.h"
+#include "ash/public/cpp/window_pin_type.h"
 #include "ash/public/cpp/window_properties.h"
+#include "ash/public/interfaces/window_pin_type.mojom.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "base/memory/ptr_util.h"
@@ -54,6 +56,9 @@ void ChromeBrowserMainExtraPartsAsh::ServiceManagerConnectionStarted(
         ash::kShelfItemTypeKey,
         ui::mojom::WindowManager::kShelfItemType_Property,
         base::Bind(&ash::IsValidShelfItemType));
+    converter->RegisterProperty(ash::kWindowPinTypeKey,
+                                ash::mojom::kWindowPinType_Property,
+                                base::Bind(&ash::IsValidWindowPinType));
 
     mus_client->SetMusPropertyMirror(
         base::MakeUnique<ash::MusPropertyMirrorAsh>());