Fixes bug in DesktopWindowTreeHostMus::SetBounds()

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 f42e00a7c8c9789df77403dc519147a61218656e..9731c9d9179ff015fb8372768ecfac04c951c7e4 100644
--- a/ui/views/mus/desktop_window_tree_host_mus.cc
+++ b/ui/views/mus/desktop_window_tree_host_mus.cc
@@ -393,7 +393,7 @@ void DesktopWindowTreeHostMus::SetBounds(const gfx::Rect& bounds_in_pixels) {
       size.SetToMin(max_size);
     final_bounds_in_pixels.set_size(size);
   }
-  WindowTreeHostPlatform::SetBounds(final_bounds_in_pixels);
+  WindowTreeHostMus::SetBounds(final_bounds_in_pixels);
 }
 
 void DesktopWindowTreeHostMus::OnWindowInitialized(aura::Window* window) {}