Make cursor highlighting feature work across multiple displays

chrome/browser/chromeos/accessibility/accessibility_highlight_manager.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_HIGHLIGHT_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_HIGHLIGHT_MANAGER_H_
 
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ skipping 18 matching lines @@
   AccessibilityHighlightManager();
   ~AccessibilityHighlightManager() override;
 
   void HighlightFocus(bool focus);
   void HighlightCursor(bool cursor);
   void HighlightCaret(bool caret);
 
   void RegisterObservers();
 
  protected:
+  FRIEND_TEST_ALL_PREFIXES(AccessibilityFocusRingControllerTest,
+                           CursorWorksOnMultipleDisplays);
+
   // ui::EventHandler overrides:
   void OnMouseEvent(ui::MouseEvent* event) override;
   void OnKeyEvent(ui::KeyEvent* event) override;
 
   // content::NotificationObserver overrides:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // ui::InputMethodObserver overrides:
@@ skipping 26 matching lines @@
 
   bool registered_observers_ = false;
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityHighlightManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_HIGHLIGHT_MANAGER_H_