Make touch accessibility gestures work with ChromeVox Next

chrome/browser/chromeos/accessibility/accessibility_manager.cc

 // 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.
 
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 762 matching lines @@
   // to the new language.
   EnableSpokenFeedback(false, ui::A11Y_NOTIFICATION_NONE);
   EnableSpokenFeedback(true, ui::A11Y_NOTIFICATION_NONE);
 }
 
 void AccessibilityManager::PlayEarcon(int sound_key) {
   DCHECK(sound_key < chromeos::SOUND_COUNT);
   ash::PlaySystemSoundIfSpokenFeedback(sound_key);
 }
 
+void AccessibilityManager::HandleAccessibilityGesture(ui::AXGesture gesture) {
+  extensions::EventRouter* event_router =
+      extensions::EventRouter::Get(profile());
+  CHECK(event_router);
+
+  std::unique_ptr<base::ListValue> event_args(new base::ListValue());
+  event_args->AppendString(ui::ToString(gesture));
+  std::unique_ptr<extensions::Event> event(new extensions::Event(
+      extensions::events::ACCESSIBILITY_PRIVATE_ON_ACCESSIBILITY_GESTURE,
+      extensions::api::accessibility_private::OnAccessibilityGesture::
+          kEventName,
+      std::move(event_args)));
+  event_router->DispatchEventWithLazyListener(
+      extension_misc::kChromeVoxExtensionId, std::move(event));
+}
+
 bool AccessibilityManager::IsHighContrastEnabled() {
   return high_contrast_enabled_;
 }
 
 void AccessibilityManager::EnableAutoclick(bool enabled) {
   if (!profile_)
     return;
 
   PrefService* pref_service = profile_->GetPrefs();
   pref_service->SetBoolean(prefs::kAccessibilityAutoclickEnabled, enabled);
@@ skipping 710 matching lines @@
     content::BrowserContext* context) {
   keyboard_listener_extension_id_ = id;
 
   extensions::ExtensionRegistry* registry =
       extensions::ExtensionRegistry::Get(context);
   if (!extension_registry_observer_.IsObserving(registry) && !id.empty())
     extension_registry_observer_.Add(registry);
 }
 
 }  // namespace chromeos