mash: Convert system tray logout button to wm common types

ash/common/wm_shell.cc

 // Copyright 2016 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 "ash/common/wm_shell.h"
 
 #include "ash/common/focus_cycler.h"
 #include "ash/common/shell_window_ids.h"
+#include "ash/common/system/chromeos/session/logout_confirmation_controller.h"
 #include "ash/common/system/tray/system_tray_delegate.h"
 #include "ash/common/system/tray/system_tray_notifier.h"
 #include "ash/common/wm/overview/window_selector_controller.h"
 #include "ash/common/wm_window.h"
+#include "base/bind.h"
 #include "base/logging.h"
 
 namespace ash {
 
 // static
 WmShell* WmShell::instance_ = nullptr;
 
 // static
 void WmShell::Set(WmShell* instance) {
   instance_ = instance;
 }
 
 // static
 WmShell* WmShell::Get() {
   return instance_;
 }
 
 WmShell::WmShell()
     : focus_cycler_(new FocusCycler),
       system_tray_notifier_(new SystemTrayNotifier),
       window_selector_controller_(new WindowSelectorController()) {}
 
 WmShell::~WmShell() {}
 
+WmRootWindowController* WmShell::GetPrimaryRootWindowController() {

[msw, 2016/06/28 19:31:03]

I have concerns about making this easy for non-test code (similar to primary
shelf/tray/etc)... can callers just inline this operation? will there be many?

[James Cook, 2016/06/28 20:14:46]

Inlined it. There will be a few, but forcing them to inline probably provides
good pressure in the direction we want to go.

[msw, 2016/06/28 21:09:16]

Please actually remove this function; otherwise nice.

[James Cook, 2016/06/28 21:41:02]

Doh, forgot to actually remove it! Done.

+  return GetPrimaryRootWindow()->GetRootWindowController();
+}
+
 bool WmShell::IsSystemModalWindowOpen() {
   if (simulate_modal_window_open_for_testing_)
     return true;
 
   // Traverse all system modal containers, and find its direct child window
   // with "SystemModal" setting, and visible.
   for (WmWindow* root : GetAllRootWindows()) {
     WmWindow* system_modal =
         root->GetChildByShellWindowId(kShellWindowId_SystemModalContainer);
     if (!system_modal)
@@ skipping 18 matching lines @@
     DCHECK(system_tray_delegate_);
     system_tray_delegate_->Shutdown();
     system_tray_delegate_.reset();
   }
 }
 
 void WmShell::DeleteWindowSelectorController() {
   window_selector_controller_.reset();
 }
 
+#if defined(OS_CHROMEOS)
+void WmShell::CreateLogoutConfirmationController() {
+  DCHECK(system_tray_delegate_);
+  logout_confirmation_controller_.reset(new LogoutConfirmationController(
+      base::Bind(&SystemTrayDelegate::SignOut,
+                 base::Unretained(system_tray_delegate_.get()))));
+}
+
+void WmShell::DeleteLogoutConfirmationController() {
+  DCHECK(system_tray_delegate_);
+  logout_confirmation_controller_.reset();
+}
+#endif  // defined(OS_CHROMEOS)
+
 }  // namespace ash