[Extensions] Convert some ChromeSyncExtensionFunctions

chrome/browser/accessibility/accessibility_extension_api.h

 // 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.
 
 #ifndef CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_
 #define CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
 #include "base/values.h"
-#include "chrome/browser/extensions/chrome_extension_function.h"
+#include "extensions/browser/extension_function.h"
 #include "ui/accessibility/ax_enums.h"
 
 // API function that enables or disables web content accessibility support.
 class AccessibilityPrivateSetNativeAccessibilityEnabledFunction
-    : public ChromeSyncExtensionFunction {
+    : public UIThreadExtensionFunction {
   ~AccessibilityPrivateSetNativeAccessibilityEnabledFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION(
       "accessibilityPrivate.setNativeAccessibilityEnabled",
       ACCESSIBILITY_PRIVATE_SETNATIVEACCESSIBILITYENABLED)
 };
 
 // API function that sets the location of the accessibility focus ring.
 class AccessibilityPrivateSetFocusRingFunction
-    : public ChromeSyncExtensionFunction {
+    : public UIThreadExtensionFunction {
   ~AccessibilityPrivateSetFocusRingFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("accessibilityPrivate.setFocusRing",
                              ACCESSIBILITY_PRIVATE_SETFOCUSRING)
 };
 
 // API function that sets keyboard capture mode.
 class AccessibilityPrivateSetKeyboardListenerFunction
     : public UIThreadExtensionFunction {
   ~AccessibilityPrivateSetKeyboardListenerFunction() override {}
   ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("accessibilityPrivate.setKeyboardListener",
                              ACCESSIBILITY_PRIVATE_SETKEYBOARDLISTENER)
 };
 
 #endif  // CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_