NOSUBMIT: Initialize a StatusAreaWidget inside ash wm

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/keyboard/keyboard_ui.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/mru_window_tracker.h"
 #include "ash/common/wm/overview/window_selector_controller.h"
 #include "ash/common/wm_window.h"
 #include "base/bind.h"
 #include "base/logging.h"
 
+#if defined(OS_CHROMEOS)
+#include "ash/common/system/chromeos/power/power_status.h"
+#endif
+
 namespace ash {
 
 // static
 WmShell* WmShell::instance_ = nullptr;
 
 // static
 void WmShell::Set(WmShell* instance) {
   instance_ = instance;
 }
 
@@ skipping 11 matching lines @@
   shell_observers_.AddObserver(observer);
 }
 
 void WmShell::RemoveShellObserver(ShellObserver* observer) {
   shell_observers_.RemoveObserver(observer);
 }
 
 WmShell::WmShell()
     : focus_cycler_(new FocusCycler),
       system_tray_notifier_(new SystemTrayNotifier),
-      window_selector_controller_(new WindowSelectorController()) {}
+      window_selector_controller_(new WindowSelectorController()) {
+#if defined(OS_CHROMEOS)
+  //JAMES move this to WindowManagerApplication and sort out the protocol
+  //buffer version problems.
+  if (!PowerStatus::IsInitialized())
+    PowerStatus::Initialize();
+#endif
+}
 
 WmShell::~WmShell() {}
 
 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()) {
@@ skipping 46 matching lines @@
 
 void WmShell::CreateMruWindowTracker() {
   mru_window_tracker_.reset(new MruWindowTracker);
 }
 
 void WmShell::DeleteMruWindowTracker() {
   mru_window_tracker_.reset();
 }
 
 }  // namespace ash