Remove FixedSizedScrollView.

ash/common/system/chromeos/bluetooth/tray_bluetooth.cc

Index: ash/common/system/chromeos/bluetooth/tray_bluetooth.cc
diff --git a/ash/common/system/chromeos/bluetooth/tray_bluetooth.cc b/ash/common/system/chromeos/bluetooth/tray_bluetooth.cc
index 3fade7bb98040b7ea7d1a28ef917e7a7ca02b5c1..ab5bacca678303133d60f677fd7b38d263b8d6e6 100644
--- a/ash/common/system/chromeos/bluetooth/tray_bluetooth.cc
+++ b/ash/common/system/chromeos/bluetooth/tray_bluetooth.cc
@@ -6,7 +6,6 @@
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
-#include "ash/common/system/tray/fixed_sized_scroll_view.h"
 #include "ash/common/system/tray/hover_highlight_view.h"
 #include "ash/common/system/tray/system_tray.h"
 #include "ash/common/system/tray/system_tray_delegate.h"
@@ -34,6 +33,7 @@
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/progress_bar.h"
+#include "ui/views/controls/scroll_view.h"
 #include "ui/views/controls/separator.h"
 #include "ui/views/layout/box_layout.h"
 
@@ -497,7 +497,7 @@ class BluetoothDetailedView : public TrayDetailsView {
         container->AddCheckableLabel(display_name, true /* highlight */, false);
       }
       scroll_content()->SizeToPreferredSize();
-      static_cast<views::View*>(scroller())->Layout();
+      scroller()->Layout();
     }
   }