Fire accessibilityPrivate events on two-finger hold gesture.

ash/ash_touch_exploration_manager_chromeos.cc

Index: ash/ash_touch_exploration_manager_chromeos.cc
diff --git a/ash/ash_touch_exploration_manager_chromeos.cc b/ash/ash_touch_exploration_manager_chromeos.cc
index 11fb5b75c53182dd4d8026206a888939d75c214e..986540b04b67a157eb27a730ba9744c38c581d0b 100644
--- a/ash/ash_touch_exploration_manager_chromeos.cc
+++ b/ash/ash_touch_exploration_manager_chromeos.cc
@@ -104,6 +104,18 @@ void AshTouchExplorationManager::OnDisplayMetricsChanged(
     UpdateTouchExplorationState();
 }
 
+void AshTouchExplorationManager::OnTwoFingerTouchStart() {
+  AccessibilityDelegate* delegate =
+      Shell::GetInstance()->accessibility_delegate();
+  delegate->OnTwoFingerTouchStart();
+}
+
+void AshTouchExplorationManager::OnTwoFingerTouchStop() {
+  AccessibilityDelegate* delegate =
+      Shell::GetInstance()->accessibility_delegate();
+  delegate->OnTwoFingerTouchStart();
+}
+
 void AshTouchExplorationManager::PlaySpokenFeedbackToggleCountdown(
     int tick_count) {
   AccessibilityDelegate* delegate = Shell::Get()->accessibility_delegate();