Renames WmShell to ShellPort

ash/wm/screen_pinning_controller.cc

Index: ash/wm/screen_pinning_controller.cc
diff --git a/ash/wm/screen_pinning_controller.cc b/ash/wm/screen_pinning_controller.cc
index a5187212eb96422f8fbe52f038b1a04abb8be245..a4658d88f61b44360d5b9da3dbf8023d8d7c0800 100644
--- a/ash/wm/screen_pinning_controller.cc
+++ b/ash/wm/screen_pinning_controller.cc
@@ -9,11 +9,11 @@
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shell.h"
+#include "ash/shell_port.h"
 #include "ash/window_user_data.h"
 #include "ash/wm/container_finder.h"
 #include "ash/wm/window_dimmer.h"
 #include "ash/wm/window_state.h"
-#include "ash/wm_shell.h"
 #include "ash/wm_window.h"
 #include "base/auto_reset.h"
 #include "base/logging.h"
@@ -157,11 +157,11 @@ ScreenPinningController::ScreenPinningController()
           base::MakeUnique<SystemModalContainerWindowObserver>(this)),
       system_modal_container_child_window_observer_(
           base::MakeUnique<SystemModalContainerChildWindowObserver>(this)) {
-  WmShell::Get()->AddDisplayObserver(this);
+  ShellPort::Get()->AddDisplayObserver(this);
 }
 
 ScreenPinningController::~ScreenPinningController() {
-  WmShell::Get()->RemoveDisplayObserver(this);
+  ShellPort::Get()->RemoveDisplayObserver(this);
 }
 
 bool ScreenPinningController::IsPinned() const {