Implement accessible states and notifications for the tab strip.

content/browser/accessibility/browser_accessibility_manager_mac.mm

 // 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 "content/browser/accessibility/browser_accessibility_manager_mac.h"
 
 #import "base/logging.h"
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 #import "content/browser/accessibility/browser_accessibility_mac.h"
 #include "content/common/accessibility_messages.h"
@@ skipping 78 matching lines @@
       break;
     case ui::AX_EVENT_LIVE_REGION_CHANGED:
       event_id = @"AXLiveRegionChanged";
       break;
     case ui::AX_EVENT_LOAD_COMPLETE:
       event_id = @"AXLoadComplete";
       break;
     case ui::AX_EVENT_MENU_LIST_VALUE_CHANGED:
       // Not used on Mac.
       return;
-    case ui::AX_EVENT_SHOW:
-      // Not used on Mac.
-      return;
-    case ui::AX_EVENT_HIDE:
-      // Not used on Mac.
-      return;
     case ui::AX_EVENT_ROW_COUNT_CHANGED:
       event_id = NSAccessibilityRowCountChangedNotification;
       break;
     case ui::AX_EVENT_ROW_COLLAPSED:
       event_id = @"AXRowCollapsed";
       break;
     case ui::AX_EVENT_ROW_EXPANDED:
       event_id = @"AXRowExpanded";
       break;
     case ui::AX_EVENT_SCROLLED_TO_ANCHOR:
       // Not used on Mac.
       return;
     case ui::AX_EVENT_SELECTED_CHILDREN_CHANGED:
       event_id = NSAccessibilitySelectedChildrenChangedNotification;
       break;
-    case ui::AX_EVENT_SELECTED_TEXT_CHANGED:
+    case ui::AX_EVENT_TEXT_SELECTION_CHANGED:
       event_id = NSAccessibilitySelectedTextChangedNotification;
       break;
-    case ui::AX_EVENT_TEXT_INSERTED:
-      // Not used on Mac.
-      return;
-    case ui::AX_EVENT_TEXT_REMOVED:
-      // Not used on Mac.
-      return;
     case ui::AX_EVENT_VALUE_CHANGED:
       event_id = NSAccessibilityValueChangedNotification;
       break;
     case ui::AX_EVENT_ARIA_ATTRIBUTE_CHANGED:
       // Not used on Mac.
       return;
     case ui::AX_EVENT_AUTOCORRECTION_OCCURED:
       // Not used on Mac.
       return;
     case ui::AX_EVENT_INVALID_STATUS_CHANGED:
@@ skipping 34 matching lines @@
   // internal state and find newly-added live regions this time.
   BrowserAccessibilityMac* root =
       static_cast<BrowserAccessibilityMac*>(GetRoot());
   root->RecreateNativeObject();
   NotifyAccessibilityEvent(ui::AX_EVENT_CHILDREN_CHANGED, root);
 
   created_live_region_ = false;
 }
 
 }  // namespace content