Remove RendererAccessibilityFocusOnly.

content/common/accessibility_mode_enums.h

 // Copyright 2014 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 CONTENT_COMMON_ACCESSIBILITY_MODE_ENUMS_H_
 #define CONTENT_COMMON_ACCESSIBILITY_MODE_ENUMS_H_
 
 // Note: keep enums in content/browser/resources/accessibility/accessibility.js
 // in sync with these two enums.
 enum AccessibilityModeFlag {
   // Accessibility updates are processed to create platform trees and events are
   // passed to platform APIs in the browser.
   AccessibilityModeFlagPlatform = 1 << 0,
 
   // Accessibility is on, and the full tree is computed. If this flag is off,
   // only limited information about editable text nodes is sent to the browser
   // process. Useful for implementing limited UIA on tablets.
   AccessibilityModeFlagFullTree = 1 << 1,
 };
 
 enum AccessibilityMode {
   // All accessibility is off.
   AccessibilityModeOff = 0,
 
-  // Renderer accessibility is on, platform APIs are called, but only limited
-  // information is available (see AccessibilityModeFlagEditableTextOnly).
-  AccessibilityModeEditableTextOnly = AccessibilityModeFlagPlatform,
-
   // Renderer accessibility is on, and platform APIs are called.
   AccessibilityModeComplete =
       AccessibilityModeFlagPlatform | AccessibilityModeFlagFullTree,
 
   // Renderer accessibility is on, and events are passed to any extensions
   // requesting automation, but not to platform accessibility.
   AccessibilityModeTreeOnly = AccessibilityModeFlagFullTree,
 };
 
 #endif  // CONTENT_COMMON_ACCESSIBILITY_MODE_ENUMS_H_