Add 5 experimental accessibility features on Chrome OS.

chrome/browser/chromeos/accessibility/accessibility_manager.h

 // Copyright (c) 2013 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_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 
 #include <set>
 
 #include "ash/session/session_state_observer.h"
@@ skipping 147 matching lines @@
   void SetAutoclickDelay(int delay_ms);
 
   // Returns the autoclick delay in milliseconds.
   int GetAutoclickDelay() const;
 
   // Enables or disables the virtual keyboard.
   void EnableVirtualKeyboard(bool enabled);
   // Returns true if the virtual keyboard is enabled, otherwise false.
   bool IsVirtualKeyboardEnabled();
 
+  // Invoked to enable or disable caret highlighting.
+  void SetCaretHighlightEnabled(bool enabled);
+
+  // Returns if caret highlighting is enabled.
+  bool IsCaretHighlightEnabled() const;
+
+  // Invoked to enable or disable cursor highlighting.
+  void SetCursorHighlightEnabled(bool enabled);
+
+  // Returns if cursor highlighting is enabled.
+  bool IsCursorHighlightEnabled() const;
+
+  // Invoked to enable or disable focus highlighting.
+  void SetFocusHighlightEnabled(bool enabled);
+
+  // Returns if focus highlighting is enabled.
+  bool IsFocusHighlightEnabled() const;
+
+  // Invoked to enable or disable select-to-speak.
+  void SetSelectToSpeakEnabled(bool enabled);
+
+  // Returns if select-to-speak is enabled.
+  bool IsSelectToSpeakEnabled() const;
+
+  // Invoked to enable or disable switch access.
+  void SetSwitchAccessEnabled(bool enabled);
+
+  // Returns if switch access is enabled.
+  bool IsSwitchAccessEnabled() const;
+
   // Returns true if a braille display is connected to the system, otherwise
   // false.
   bool IsBrailleDisplayConnected() const;
 
   // SessionStateObserver overrides:
   void ActiveUserChanged(const AccountId& account_id) override;
 
   // ShellObserver overrides:
   void OnAppTerminating() override;
 
@@ skipping 61 matching lines @@
   void PostLoadChromeVox(Profile* profile);
   void PostUnloadChromeVox(Profile* profile);
 
   void UpdateLargeCursorFromPref();
   void UpdateStickyKeysFromPref();
   void UpdateSpokenFeedbackFromPref();
   void UpdateHighContrastFromPref();
   void UpdateAutoclickFromPref();
   void UpdateAutoclickDelayFromPref();
   void UpdateVirtualKeyboardFromPref();
+  void UpdateCaretHighlightFromPref();
+  void UpdateCursorHighlightFromPref();
+  void UpdateFocusHighlightFromPref();
+  void UpdateSelectToSpeakFromPref();
+  void UpdateSwitchAccessFromPref();
 
   void CheckBrailleState();
   void ReceiveBrailleDisplayState(
       scoped_ptr<extensions::api::braille_display_private::DisplayState> state);
   void UpdateBrailleImeState();
 
   void SetProfile(Profile* profile);
 
   void UpdateChromeOSAccessibilityHistograms();
 
@@ skipping 34 matching lines @@
   scoped_ptr<PrefChangeRegistrar> pref_change_registrar_;
   scoped_ptr<PrefChangeRegistrar> local_state_pref_change_registrar_;
   scoped_ptr<ash::ScopedSessionStateObserver> session_state_observer_;
 
   PrefHandler large_cursor_pref_handler_;
   PrefHandler spoken_feedback_pref_handler_;
   PrefHandler high_contrast_pref_handler_;
   PrefHandler autoclick_pref_handler_;
   PrefHandler autoclick_delay_pref_handler_;
   PrefHandler virtual_keyboard_pref_handler_;
+  PrefHandler caret_highlight_pref_handler_;
+  PrefHandler cursor_highlight_pref_handler_;
+  PrefHandler focus_highlight_pref_handler_;
+  PrefHandler select_to_speak_pref_handler_;
+  PrefHandler switch_access_pref_handler_;
 
   bool large_cursor_enabled_;
   bool sticky_keys_enabled_;
   bool spoken_feedback_enabled_;
   bool high_contrast_enabled_;
   bool autoclick_enabled_;
   int autoclick_delay_ms_;
   bool virtual_keyboard_enabled_;
+  bool caret_highlight_enabled_;
+  bool cursor_highlight_enabled_;
+  bool focus_highlight_enabled_;
+  bool select_to_speak_enabled_;
+  bool switch_access_enabled_;
 
   ui::AccessibilityNotificationVisibility spoken_feedback_notification_;
 
   bool should_speak_chrome_vox_announcements_on_user_screen_;
 
   bool system_sounds_enabled_;
 
   AccessibilityStatusCallbackList callback_list_;
 
   bool braille_display_connected_;
@@ skipping 14 matching lines @@
       extension_registry_observer_;
 
   base::WeakPtrFactory<AccessibilityManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_