Random wm frame painting fixes

mash/wm/non_client_frame_controller.h

Index: mash/wm/non_client_frame_controller.h
diff --git a/mash/wm/non_client_frame_controller.h b/mash/wm/non_client_frame_controller.h
index c43cf736ffb631a5365744d18e5eaaa12aec06ea..c8c9da7e4ced4b4c4c30c4167bc980ec37c8bbe5 100644
--- a/mash/wm/non_client_frame_controller.h
+++ b/mash/wm/non_client_frame_controller.h
@@ -33,9 +33,9 @@ class NonClientFrameController : public views::WidgetDelegateView,
                                  public mus::WindowObserver {
  public:
   // NonClientFrameController deletes itself when |window| is destroyed.
-  NonClientFrameController(mojo::Connector* connector,
-                           mus::Window* window,
-                           mus::WindowManagerClient* window_manager_client);
+  static void Create(mojo::Connector* connector,
+                     mus::Window* window,
+                     mus::WindowManagerClient* window_manager_client);
 
   // Returns the preferred client area insets.
   static gfx::Insets GetPreferredClientAreaInsets();
@@ -47,6 +47,9 @@ class NonClientFrameController : public views::WidgetDelegateView,
   mus::Window* window() { return window_; }
 
  private:
+  NonClientFrameController(mojo::Connector* connector,
+                           mus::Window* window,
+                           mus::WindowManagerClient* window_manager_client);
   ~NonClientFrameController() override;
 
   // views::WidgetDelegateView: