Move yet more from WmShell to Shell

ash/common/wm/maximize_mode/maximize_mode_event_handler.cc

Index: ash/common/wm/maximize_mode/maximize_mode_event_handler.cc
diff --git a/ash/common/wm/maximize_mode/maximize_mode_event_handler.cc b/ash/common/wm/maximize_mode/maximize_mode_event_handler.cc
index 7c3d36d249f4101d7a3a614f1fc539b9967629b9..55838ef198e4e2ed75b0ea48e76ab0f6303572d8 100644
--- a/ash/common/wm/maximize_mode/maximize_mode_event_handler.cc
+++ b/ash/common/wm/maximize_mode/maximize_mode_event_handler.cc
@@ -31,7 +31,7 @@ bool MaximizeModeEventHandler::ToggleFullscreen(const ui::TouchEvent& event) {
   if (event.type() != ui::ET_TOUCH_PRESSED)
     return false;
 
-  const SessionController* controller = WmShell::Get()->session_controller();
+  const SessionController* controller = Shell::Get()->session_controller();
 
   if (controller->IsScreenLocked() ||
       controller->GetSessionState() != session_manager::SessionState::ACTIVE) {