Replace kCanMaximize/Minimize/Resize with kResizeBehavior.

ui/views/mus/desktop_window_tree_host_mus.cc

Index: ui/views/mus/desktop_window_tree_host_mus.cc
diff --git a/ui/views/mus/desktop_window_tree_host_mus.cc b/ui/views/mus/desktop_window_tree_host_mus.cc
index bdcf46e82eb83aa3356cb3ab202a6cc038307386..98bddc6132a726f1ebc62a468dbc2e9260ee4767 100644
--- a/ui/views/mus/desktop_window_tree_host_mus.cc
+++ b/ui/views/mus/desktop_window_tree_host_mus.cc
@@ -130,22 +130,6 @@ DesktopWindowTreeHostMus::~DesktopWindowTreeHostMus() {
   desktop_native_widget_aura_->OnDesktopWindowTreeHostDestroyed(this);
 }
 
-// static
-int DesktopWindowTreeHostMus::GetResizeBehaviorFromDelegate(
-    WidgetDelegate* delegate) {
-  if (!delegate)
-    return ui::mojom::kResizeBehaviorNone;
-
-  int32_t behavior = ui::mojom::kResizeBehaviorNone;
-  if (delegate->CanResize())
-    behavior |= ui::mojom::kResizeBehaviorCanResize;
-  if (delegate->CanMaximize())
-    behavior |= ui::mojom::kResizeBehaviorCanMaximize;
-  if (delegate->CanMinimize())
-    behavior |= ui::mojom::kResizeBehaviorCanMinimize;
-  return behavior;
-}
-
 bool DesktopWindowTreeHostMus::IsDocked() const {
   return window()->GetProperty(aura::client::kShowStateKey) ==
          ui::SHOW_STATE_DOCKED;
@@ -550,17 +534,11 @@ bool DesktopWindowTreeHostMus::IsTranslucentWindowOpacitySupported() const {
 }
 
 void DesktopWindowTreeHostMus::SizeConstraintsChanged() {
+  int32_t behavior = ui::mojom::kResizeBehaviorNone;
   Widget* widget = native_widget_delegate_->AsWidget();
-  window()->SetProperty(aura::client::kCanMaximizeKey,
-                        widget->widget_delegate()->CanMaximize());
-  window()->SetProperty(aura::client::kCanMinimizeKey,
-                        widget->widget_delegate()->CanMinimize());
-  window()->SetProperty(aura::client::kCanResizeKey,
-                        widget->widget_delegate()->CanResize());
-  // TODO: replace above keys with kResizeBehaviorKey. http://crbug.com/669290.
-  window()->SetProperty(
-      aura::client::kResizeBehaviorKey,
-      GetResizeBehaviorFromDelegate(widget->widget_delegate()));
+  if (widget->widget_delegate())
+    behavior = widget->widget_delegate()->GetResizeBehavior();
+  window()->SetProperty(aura::client::kResizeBehaviorKey, behavior);
 }
 
 void DesktopWindowTreeHostMus::OnWindowManagerFrameValuesChanged() {