Fire accessibilityPrivate events on two-finger hold gesture.

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 579 matching lines @@
   base::CommandLine* cl = base::CommandLine::ForCurrentProcess();
   if (cl->HasSwitch(kAshDisableSystemSounds))
     return false;
   if (option == PlaySoundOption::SPOKEN_FEEDBACK_ENABLED &&
       !IsSpokenFeedbackEnabled() && !cl->HasSwitch(kAshEnableSystemSounds)) {
     return false;
   }
   return media::SoundsManager::Get()->Play(sound_key);
 }
 
+void AccessibilityManager::OnTwoFingerTouchStart() {
+  extensions::EventRouter* event_router =
+      extensions::EventRouter::Get(profile());
+  CHECK(event_router);
+
+  std::unique_ptr<base::ListValue> event_args(new base::ListValue());

[oshima, 2017/04/10 18:32:08]

nit: MakeUnique

same for the rest.

[dmazzoni, 2017/04/11 05:49:40]

Done.

+  std::unique_ptr<extensions::Event> event(new extensions::Event(
+      extensions::events::ACCESSIBILITY_PRIVATE_ON_TWO_FINGER_TOUCH_START,
+      extensions::api::accessibility_private::OnTwoFingerTouchStart::kEventName,
+      std::move(event_args)));
+  event_router->BroadcastEvent(std::move(event));
+}
+
+void AccessibilityManager::OnTwoFingerTouchStop() {
+  extensions::EventRouter* event_router =
+      extensions::EventRouter::Get(profile());
+  CHECK(event_router);
+
+  std::unique_ptr<base::ListValue> event_args(new base::ListValue());
+  std::unique_ptr<extensions::Event> event(new extensions::Event(
+      extensions::events::ACCESSIBILITY_PRIVATE_ON_TWO_FINGER_TOUCH_STOP,
+      extensions::api::accessibility_private::OnTwoFingerTouchStop::kEventName,
+      std::move(event_args)));
+  event_router->BroadcastEvent(std::move(event));
+}
+
 bool AccessibilityManager::ShouldToggleSpokenFeedbackViaTouch() {
 #if 1
   // Temporarily disabling this feature until UI feedback is fixed.
   // http://crbug.com/662501
   return false;
 #else
   policy::BrowserPolicyConnectorChromeOS* connector =
       g_browser_process->platform_part()->browser_policy_connector_chromeos();
   if (!connector)
     return false;
@@ skipping 886 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