Make chrome/browser/chromeos/accessibility compile on Athena with use_ash=0

ash/default_accessibility_delegate.h

 // Copyright 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 ASH_DEFAULT_ACCESSIBILITY_DELEGATE_H_
 #define ASH_DEFAULT_ACCESSIBILITY_DELEGATE_H_
 
 #include "ash/accessibility_delegate.h"
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
 namespace ash {
 
 class ASH_EXPORT DefaultAccessibilityDelegate : public AccessibilityDelegate {
  public:
   DefaultAccessibilityDelegate();
   ~DefaultAccessibilityDelegate() override;
 
   bool IsSpokenFeedbackEnabled() const override;
   void ToggleHighContrast() override;
   bool IsHighContrastEnabled() const override;
   void SetMagnifierEnabled(bool enabled) override;
-  void SetMagnifierType(MagnifierType type) override;
+  void SetMagnifierType(ui::MagnifierType type) override;
   bool IsMagnifierEnabled() const override;
-  MagnifierType GetMagnifierType() const override;
+  ui::MagnifierType GetMagnifierType() const override;
   void SetLargeCursorEnabled(bool enabled) override;
   bool IsLargeCursorEnabled() const override;
   void SetAutoclickEnabled(bool enabled) override;
   bool IsAutoclickEnabled() const override;
   void SetVirtualKeyboardEnabled(bool enabled) override;
   bool IsVirtualKeyboardEnabled() const override;
   bool ShouldShowAccessibilityMenu() const override;
   bool IsBrailleDisplayConnected() const override;
   void SilenceSpokenFeedback() const override;
   void ToggleSpokenFeedback(
-      AccessibilityNotificationVisibility notify) override;
+      ui::AccessibilityNotificationVisibility notify) override;
   void SaveScreenMagnifierScale(double scale) override;
   double GetSavedScreenMagnifierScale() override;
-  void TriggerAccessibilityAlert(AccessibilityAlert alert) override;
-  AccessibilityAlert GetLastAccessibilityAlert() override;
+  void TriggerAccessibilityAlert(ui::AccessibilityAlert alert) override;
+  ui::AccessibilityAlert GetLastAccessibilityAlert() override;
   void PlayEarcon(int sound_key) override;
   base::TimeDelta PlayShutdownSound() const override;
 
  private:
   bool spoken_feedback_enabled_;
   bool high_contrast_enabled_;
   bool screen_magnifier_enabled_;
-  MagnifierType screen_magnifier_type_;
+  ui::MagnifierType screen_magnifier_type_;
   bool large_cursor_enabled_;
   bool autoclick_enabled_;
   bool virtual_keyboard_enabled_;
-  AccessibilityAlert accessibility_alert_;
+  ui::AccessibilityAlert accessibility_alert_;
   DISALLOW_COPY_AND_ASSIGN(DefaultAccessibilityDelegate);
 };
 
 }  // namespace ash
 
 #endif  // DEFAULT_ACCESSIBILITY_DELEGATE_H_