Adds a couple more properties to the property converter

ui/aura/client/aura_constants.h

Index: ui/aura/client/aura_constants.h
diff --git a/ui/aura/client/aura_constants.h b/ui/aura/client/aura_constants.h
index 9eb52910c9ac71afdd55ddaeb746a43bcc19e987..9f0afb8943c091c7cd46abf4e08aef7552adf429 100644
--- a/ui/aura/client/aura_constants.h
+++ b/ui/aura/client/aura_constants.h
@@ -14,7 +14,6 @@
 #include "ui/base/ui_base_types.h"
 
 namespace ui {
-class InputMethod;
 namespace mojom {
 enum class WindowType;
 }
@@ -76,6 +75,13 @@ AURA_EXPORT extern const WindowProperty<ui::ModalType>* const kModalKey;
 // A property key to store the name of the window; mostly used for debugging.
 AURA_EXPORT extern const WindowProperty<std::string*>* const kNameKey;
 
+// A property key to store the preferred size of the window.
+AURA_EXPORT extern const WindowProperty<gfx::Size*>* const kPreferredSize;
+
+// A property key to store the resize behavior, which is a bitmask of the
+// ui::mojom::kResizeBehavior values.
+AURA_EXPORT extern const WindowProperty<int32_t>* const kResizeBehaviorKey;
+
 // A property key to store the restore bounds for a window.
 AURA_EXPORT extern const WindowProperty<gfx::Rect*>* const kRestoreBoundsKey;