Renames WmShell to ShellPort

ash/wm/wm_toplevel_window_event_handler.h

Index: ash/wm/wm_toplevel_window_event_handler.h
diff --git a/ash/wm/wm_toplevel_window_event_handler.h b/ash/wm/wm_toplevel_window_event_handler.h
index 9b273f5773655fa9aee8c3390305d8e0425b00aa..5cf850a4f345c923a0daafd8b900d8434e9795e2 100644
--- a/ash/wm/wm_toplevel_window_event_handler.h
+++ b/ash/wm/wm_toplevel_window_event_handler.h
@@ -24,7 +24,6 @@ class GestureEvent;
 
 namespace ash {
 
-class WmShell;
 class WmWindow;
 
 namespace wm {
@@ -46,7 +45,7 @@ class ASH_EXPORT WmToplevelWindowEventHandler : public WmDisplayObserver {
   };
   using EndClosure = base::Callback<void(DragResult)>;
 
-  explicit WmToplevelWindowEventHandler(WmShell* shell);
+  WmToplevelWindowEventHandler();
   ~WmToplevelWindowEventHandler() override;
 
   void OnKeyEvent(ui::KeyEvent* event);
@@ -101,8 +100,6 @@ class ASH_EXPORT WmToplevelWindowEventHandler : public WmDisplayObserver {
   // WmDisplayObserver:
   void OnDisplayConfigurationChanging() override;
 
-  WmShell* shell_;
-
   // The hittest result for the first finger at the time that it initially
   // touched the screen. |first_finger_hittest_| is one of ui/base/hit_test.h
   int first_finger_hittest_;