Renames WmShell to ShellPort

ash/shell/app_list.cc

Index: ash/shell/app_list.cc
diff --git a/ash/shell/app_list.cc b/ash/shell/app_list.cc
index 7923499899662ac395ed1a7dba5965a17d80992f..0cc998ba6b3fd3e0804868bf8ee3658eff050037 100644
--- a/ash/shell/app_list.cc
+++ b/ash/shell/app_list.cc
@@ -11,7 +11,7 @@
 #include "ash/shell.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell/toplevel_window.h"
-#include "ash/wm_shell.h"
+#include "ash/shell_port.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/i18n/case_conversion.h"
@@ -274,7 +274,7 @@ class ExampleAppListViewDelegate : public app_list::AppListViewDelegate {
   }
 
   void Dismiss() override {
-    DCHECK(WmShell::HasInstance());
+    DCHECK(ShellPort::HasInstance());
     Shell::Get()->DismissAppList();
   }