Renames WmShell to ShellPort

ash/drag_drop/drag_drop_controller.cc

Index: ash/drag_drop/drag_drop_controller.cc
diff --git a/ash/drag_drop/drag_drop_controller.cc b/ash/drag_drop/drag_drop_controller.cc
index 03c1169214a60ab2e4f3c150b66554573e33f098..8308a4df300d4714369690e0c691a56ca8b0e847 100644
--- a/ash/drag_drop/drag_drop_controller.cc
+++ b/ash/drag_drop/drag_drop_controller.cc
@@ -9,7 +9,7 @@
 #include "ash/drag_drop/drag_drop_tracker.h"
 #include "ash/drag_drop/drag_image_view.h"
 #include "ash/shell.h"
-#include "ash/wm_shell.h"
+#include "ash/shell_port.h"
 #include "ash/wm_window.h"
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
@@ -136,11 +136,11 @@ DragDropController::DragDropController()
       current_drag_event_source_(ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE),
       weak_factory_(this) {
   Shell::Get()->PrependPreTargetHandler(this);
-  WmShell::Get()->AddDisplayObserver(this);
+  ShellPort::Get()->AddDisplayObserver(this);
 }
 
 DragDropController::~DragDropController() {
-  WmShell::Get()->RemoveDisplayObserver(this);
+  ShellPort::Get()->RemoveDisplayObserver(this);
   Shell::Get()->RemovePreTargetHandler(this);
   Cleanup();
   if (cancel_animation_)