Add a big grab bag of missing web accessibility functionality...

content/browser/accessibility/browser_accessibility_manager_mac.mm

Index: content/browser/accessibility/browser_accessibility_manager_mac.mm
===================================================================
--- content/browser/accessibility/browser_accessibility_manager_mac.mm	(revision 98956)
+++ content/browser/accessibility/browser_accessibility_manager_mac.mm	(working copy)
@@ -32,30 +32,68 @@
   // Refer to AXObjectCache.mm (webkit).
   NSString* event_id = @"";
   switch (type) {
-    case ViewHostMsg_AccessibilityNotification_Type::
-        NOTIFICATION_TYPE_CHECK_STATE_CHANGED:
-      // Does not exist on Mac.
+    case ViewHostMsg_AccEvent::ACTIVE_DESCENDANT_CHANGED:
+      if (node->role() == WebAccessibility::ROLE_TREE)
+        event_id = NSAccessibilitySelectedRowsChangedNotification;
+      else
+        event_id = NSAccessibilityFocusedUIElementChangedNotification;
+    case ViewHostMsg_AccEvent::ALERT:
+      // Not used on Mac.
       return;
-    case ViewHostMsg_AccessibilityNotification_Type::
-        NOTIFICATION_TYPE_CHILDREN_CHANGED:
+    case ViewHostMsg_AccEvent::CHECK_STATE_CHANGED:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::CHILDREN_CHANGED:
       // TODO(dtseng): no clear equivalent on Mac.
       return;
-    case ViewHostMsg_AccessibilityNotification_Type::
-        NOTIFICATION_TYPE_FOCUS_CHANGED:
+    case ViewHostMsg_AccEvent::FOCUS_CHANGED:
       event_id = NSAccessibilityFocusedUIElementChangedNotification;
       break;
-    case ViewHostMsg_AccessibilityNotification_Type::
-        NOTIFICATION_TYPE_LOAD_COMPLETE:
+    case ViewHostMsg_AccEvent::LAYOUT_COMPLETE:
+      event_id = @"AXLayoutComplete";
+      break;
+    case ViewHostMsg_AccEvent::LIVE_REGION_CHANGED:
+      event_id = @"AXLiveRegionChanged";
+      break;
+    case ViewHostMsg_AccEvent::LOAD_COMPLETE:
       event_id = @"AXLoadComplete";
       break;
-    case ViewHostMsg_AccessibilityNotification_Type::
-        NOTIFICATION_TYPE_VALUE_CHANGED:
-      event_id = NSAccessibilityValueChangedNotification;
+    case ViewHostMsg_AccEvent::MENU_LIST_VALUE_CHANGED:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::OBJECT_SHOW:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::OBJECT_HIDE:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::ROW_COUNT_CHANGED:
+      event_id = NSAccessibilityRowCountChangedNotification;
       break;
-    case ViewHostMsg_AccessibilityNotification_Type::
-        NOTIFICATION_TYPE_SELECTED_TEXT_CHANGED:
+    case ViewHostMsg_AccEvent::ROW_COLLAPSED:
+      event_id = @"AXRowCollapsed";
+      break;
+    case ViewHostMsg_AccEvent::ROW_EXPANDED:
+      event_id = @"AXRowExpanded";
+      break;
+    case ViewHostMsg_AccEvent::SCROLLED_TO_ANCHOR:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::SELECTED_CHILDREN_CHANGED:
+      event_id = NSAccessibilitySelectedChildrenChangedNotification;
+      break;
+    case ViewHostMsg_AccEvent::SELECTED_TEXT_CHANGED:
       event_id = NSAccessibilitySelectedTextChangedNotification;
       break;
+    case ViewHostMsg_AccEvent::TEXT_INSERTED:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::TEXT_REMOVED:
+      // Not used on Mac.
+      return;
+    case ViewHostMsg_AccEvent::VALUE_CHANGED:
+      event_id = NSAccessibilityValueChangedNotification;
+      break;
   }
   BrowserAccessibilityCocoa* native_node = node->toBrowserAccessibilityCocoa();
   DCHECK(native_node);