Factor the extension loading code out of AccessibilityManager

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/common/accessibility_types.h"
@@ skipping 16 matching lines @@
 #include "ui/base/ime/chromeos/input_method_manager.h"
 
 namespace content {
 class RenderViewHost;
 }
 
 class Profile;
 
 namespace chromeos {
 
+class AccessibilityExtensionLoader;
 class AccessibilityHighlightManager;
 
 enum AccessibilityNotificationType {
   ACCESSIBILITY_MANAGER_SHUTDOWN,
   ACCESSIBILITY_TOGGLE_HIGH_CONTRAST_MODE,
   ACCESSIBILITY_TOGGLE_LARGE_CURSOR,
   ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER,
   ACCESSIBILITY_TOGGLE_SPOKEN_FEEDBACK,
   ACCESSIBILITY_TOGGLE_VIRTUAL_KEYBOARD,
   ACCESSIBILITY_TOGGLE_MONO_AUDIO,
@@ skipping 232 matching lines @@
   void set_keyboard_listener_capture(bool val) {
     keyboard_listener_capture_ = val;
   }
   bool keyboard_listener_capture() { return keyboard_listener_capture_; }
 
  protected:
   AccessibilityManager();
   ~AccessibilityManager() override;
 
  private:
-  void LoadChromeVox();
-  void LoadChromeVoxToUserScreen(const base::Closure& done_cb);
-  void LoadChromeVoxToLockScreen(const base::Closure& done_cb);
-  void UnloadChromeVox();
-  void UnloadChromeVoxFromLockScreen();
-  void PostLoadChromeVox(Profile* profile);
-  void PostUnloadChromeVox(Profile* profile);
+  void PostLoadChromeVox();
 
   void UpdateLargeCursorFromPref();
   void UpdateStickyKeysFromPref();
   void UpdateSpokenFeedbackFromPref();
   void UpdateHighContrastFromPref();
   void UpdateAutoclickFromPref();
   void UpdateAutoclickDelayFromPref();
   void UpdateVirtualKeyboardFromPref();
   void UpdateMonoAudioFromPref();
   void UpdateCaretHighlightFromPref();
@@ skipping 34 matching lines @@
   void OnShutdown(extensions::ExtensionRegistry* registry) override;
 
   // InputMethodManager::Observer
   void InputMethodChanged(input_method::InputMethodManager* manager,
                           Profile* profile,
                           bool show_message) override;
 
   // Profile which has the current a11y context.
   Profile* profile_;
 
-  // Profile which ChromeVox is currently loaded to. If NULL, ChromeVox is not
-  // loaded to any profile.
-  bool chrome_vox_loaded_on_lock_screen_;
-  bool chrome_vox_loaded_on_user_screen_;
-
   content::NotificationRegistrar notification_registrar_;
   std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
   std::unique_ptr<PrefChangeRegistrar> local_state_pref_change_registrar_;
   std::unique_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_;
@@ skipping 41 matching lines @@
   bool keyboard_listener_capture_;
 
   // Listen to extension unloaded notifications.
   ScopedObserver<extensions::ExtensionRegistry,
                  extensions::ExtensionRegistryObserver>
       extension_registry_observer_;
 
   std::unique_ptr<AccessibilityHighlightManager>
       accessibility_highlight_manager_;
 
+  std::unique_ptr<AccessibilityExtensionLoader> chromevox_loader_;
+
   base::WeakPtrFactory<AccessibilityManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_