Fire accessibilityPrivate events on two-finger hold gesture.

chrome/browser/ui/ash/chrome_shell_delegate.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/ash/chrome_shell_delegate.h"
 
 #include <stddef.h>
 
 #include <limits>
 
@@ skipping 322 matching lines @@
         if (alert == ash::A11Y_ALERT_SCREEN_OFF)
           SetAutomationManagerEnabled(profile, false);
       }
     }
   }
 
   ash::AccessibilityAlert GetLastAccessibilityAlert() override {
     return ash::A11Y_ALERT_NONE;
   }
 
+  void OnTwoFingerTouchStart() override {
+    DCHECK(AccessibilityManager::Get());
+    AccessibilityManager::Get()->OnTwoFingerTouchStart();
+  }
+
+  void OnTwoFingerTouchStop() override {
+    DCHECK(AccessibilityManager::Get());
+    AccessibilityManager::Get()->OnTwoFingerTouchStop();
+  }
+
   bool ShouldToggleSpokenFeedbackViaTouch() override {
     DCHECK(AccessibilityManager::Get());
     return AccessibilityManager::Get()->ShouldToggleSpokenFeedbackViaTouch();
   }
 
   void PlaySpokenFeedbackToggleCountdown(int tick_count) override {
     DCHECK(AccessibilityManager::Get());
     AccessibilityManager::Get()->PlaySpokenFeedbackToggleCountdown(tick_count);
   }
 
@@ skipping 270 matching lines @@
       NOTREACHED() << "Unexpected notification " << type;
   }
 }
 
 void ChromeShellDelegate::PlatformInit() {
   registrar_.Add(this, chrome::NOTIFICATION_LOGIN_USER_PROFILE_PREPARED,
                  content::NotificationService::AllSources());
   registrar_.Add(this, chrome::NOTIFICATION_SESSION_STARTED,
                  content::NotificationService::AllSources());
 }