Renames WmShell to ShellPort

ash/shell_init_params.h

Index: ash/shell_init_params.h
diff --git a/ash/shell_init_params.h b/ash/shell_init_params.h
index d2f01e6b07661690b63aba9210b4b5f458c6f13d..7a10cd73fca1aa504e356c05e46b919518fff6d7 100644
--- a/ash/shell_init_params.h
+++ b/ash/shell_init_params.h
@@ -22,11 +22,11 @@ class ContextFactory;
 namespace ash {
 
 class ShellDelegate;
+class ShellPort;
 
 struct ASH_EXPORT ShellInitParams {
-  // Shell takes ownership of |wm_shell|, if null WmShellAura is created.
-  // TODO(sky): temporary, will eventually go away.
-  WmShell* wm_shell = nullptr;
+  // Shell takes ownership of |shell_port|, if null ShellPortClassic is created.
+  ShellPort* shell_port = nullptr;
   // Shell takes ownership of |primary_window_tree_host|. This is only used
   // by mash.
   aura::WindowTreeHostMus* primary_window_tree_host = nullptr;