Fire accessibilityPrivate events on two-finger hold gesture.

ash/default_accessibility_delegate.cc

 // 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.
 
 #include "ash/default_accessibility_delegate.h"
 
 #include <limits>
 
 namespace ash {
 
@@ skipping 144 matching lines @@
 
 void DefaultAccessibilityDelegate::TriggerAccessibilityAlert(
     AccessibilityAlert alert) {
   accessibility_alert_ = alert;
 }
 
 AccessibilityAlert DefaultAccessibilityDelegate::GetLastAccessibilityAlert() {
   return accessibility_alert_;
 }
 
+void DefaultAccessibilityDelegate::OnTwoFingerTouchStart() {}
+
+void DefaultAccessibilityDelegate::OnTwoFingerTouchStop() {}
+
 bool DefaultAccessibilityDelegate::ShouldToggleSpokenFeedbackViaTouch() {
   return false;
 }
 
 void DefaultAccessibilityDelegate::PlaySpokenFeedbackToggleCountdown(
     int tick_count) {}
 
 void DefaultAccessibilityDelegate::PlayEarcon(int sound_key) {}
 
 base::TimeDelta DefaultAccessibilityDelegate::PlayShutdownSound() const {
   return base::TimeDelta();
 }
 
 void DefaultAccessibilityDelegate::HandleAccessibilityGesture(
     ui::AXGesture gesture) {}
 
 }  // namespace ash