[cros, Aura] Make screen_mode static variable in StatusAreaViewChromeos

chrome/browser/chromeos/status/accessibility_menu_button.h

Index: chrome/browser/chromeos/status/accessibility_menu_button.h
diff --git a/chrome/browser/chromeos/status/accessibility_menu_button.h b/chrome/browser/chromeos/status/accessibility_menu_button.h
index 4b7a4f76d7d894e6e3fb37fbf6535debdffa8c30..925b7c95ec9976399821f32608f8b223134dc12c 100644
--- a/chrome/browser/chromeos/status/accessibility_menu_button.h
+++ b/chrome/browser/chromeos/status/accessibility_menu_button.h
@@ -7,7 +7,6 @@
 #pragma once
 
 #include "chrome/browser/chromeos/status/status_area_button.h"
-#include "chrome/browser/chromeos/status/status_area_view_chromeos.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "content/public/browser/notification_observer.h"
 #include "views/controls/menu/view_menu_delegate.h"
@@ -28,9 +27,7 @@ class AccessibilityMenuButton : public StatusAreaButton,
                                 public views::MenuDelegate,
                                 public content::NotificationObserver {
  public:
-  explicit AccessibilityMenuButton(
-      StatusAreaButton::Delegate* delegate,
-      StatusAreaViewChromeos::ScreenMode screen_mode);
+  explicit AccessibilityMenuButton(StatusAreaButton::Delegate* delegate);
   virtual ~AccessibilityMenuButton();
 
   // views::ViewMenuDelegate implementation
@@ -51,8 +48,6 @@ class AccessibilityMenuButton : public StatusAreaButton,
   // Prepares menu before showing it.
   void PrepareMenu();
 
-  StatusAreaViewChromeos::ScreenMode screen_mode_;
-
   // An object synced to the preference, representing if accessibility feature
   // is enabled or not.
   BooleanPrefMember accessibility_enabled_;