Fixes smart deploy causing crash on shutdown.

ash/wm/maximize_mode/maximize_mode_controller.h

Index: ash/wm/maximize_mode/maximize_mode_controller.h
diff --git a/ash/wm/maximize_mode/maximize_mode_controller.h b/ash/wm/maximize_mode/maximize_mode_controller.h
index f6c7fedb5e427cbee977e82b61cfa4cd85f83a6b..1df8db642d326f57077410d2b9aada63b1be8ec3 100644
--- a/ash/wm/maximize_mode/maximize_mode_controller.h
+++ b/ash/wm/maximize_mode/maximize_mode_controller.h
@@ -35,6 +35,7 @@ class MaximizeModeWindowManager;
 class MaximizeModeWindowManagerTest;
 namespace test {
 class MultiUserWindowManagerChromeOSTest;
+class VirtualKeyboardControllerTest;
 }
 
 // MaximizeModeController listens to accelerometer events and automatically
@@ -135,6 +136,7 @@ class ASH_EXPORT MaximizeModeController
   friend class MaximizeModeControllerTest;
   friend class MaximizeModeWindowManagerTest;
   friend class test::MultiUserWindowManagerChromeOSTest;
+  friend class test::VirtualKeyboardControllerTest;
 
   // Set the TickClock. This is only to be used by tests that need to
   // artificially and deterministically control the current time.