[ash-md] Cancels overview mode before switching user profiles

chrome/browser/ui/ash/multi_user/user_switch_util.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/multi_user/user_switch_util.h"
 
 #include "ash/common/strings/grit/ash_strings.h"
 #include "ash/common/system/chromeos/screen_security/screen_tray_item.h"
 #include "ash/common/system/tray/system_tray.h"
+#include "ash/common/wm/overview/window_selector_controller.h"
+#include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/window/dialog_delegate.h"
 
 namespace {
 
@@ skipping 145 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // Factory function.
 
 void TrySwitchingActiveUser(const base::Callback<void()> on_switch) {
   // Some unit tests do not have a shell. In that case simply execute.
   if (!ash::Shell::HasInstance()) {
     on_switch.Run();
     return;
   }
+
+  // Cancel overview mode when switching user profiles.
+  ash::WindowSelectorController* controller =
+      ash::WmShell::Get()->window_selector_controller();
+  if (controller->IsSelecting())
+    controller->ToggleOverview();
+
   // If neither screen sharing nor capturing is going on we can immediately
   // switch users.
   ash::SystemTray* system_tray =
       ash::Shell::GetInstance()->GetPrimarySystemTray();
   if (!system_tray->GetScreenShareItem()->is_started() &&
       !system_tray->GetScreenCaptureItem()->is_started()) {
     on_switch.Run();
     return;
   }
   DesktopCastingWarningView::ShowDialog(on_switch);
 }
 
 bool TestAndTerminateDesktopCastingWarningForTest(bool accept) {
   if (!instance_for_test)
     return false;
   if (accept)
     instance_for_test->Accept();
   delete instance_for_test->GetWidget()->GetNativeWindow();
   CHECK(!instance_for_test);
   return true;
 }