Revert of "Implement the inert attribute"

third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp

 /*
  * Copyright (C) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 21 matching lines @@
 #include "core/InputTypeNames.h"
 #include "core/dom/AccessibleNode.h"
 #include "core/dom/Document.h"
 #include "core/dom/TaskRunnerHelper.h"
 #include "core/editing/EditingUtilities.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLAreaElement.h"
 #include "core/html/HTMLCanvasElement.h"
-#include "core/html/HTMLFrameOwnerElement.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLLabelElement.h"
 #include "core/html/HTMLOptionElement.h"
 #include "core/html/HTMLSelectElement.h"
 #include "core/layout/LayoutListBox.h"
 #include "core/layout/LayoutMenuList.h"
 #include "core/layout/LayoutProgress.h"
 #include "core/layout/LayoutSlider.h"
 #include "core/layout/LayoutTable.h"
@@ skipping 532 matching lines @@
 }
 
 void AXObjectCacheImpl::TextChanged(LayoutObject* layout_object) {
   TextChanged(GetOrCreate(layout_object));
 }
 
 void AXObjectCacheImpl::TextChanged(AXObjectImpl* obj) {
   if (!obj)
     return;
 
+  bool parent_already_exists = obj->ParentObjectIfExists();
   obj->TextChanged();
   PostNotification(obj, AXObjectCacheImpl::kAXTextChanged);
+  if (parent_already_exists)
+    obj->NotifyIfIgnoredValueChanged();
 }
 
 void AXObjectCacheImpl::UpdateCacheAfterNodeIsAttached(Node* node) {
   // Calling get() will update the AX object if we had an AXNodeObject but now
   // we need an AXLayoutObject, because it was reparented to a location outside
   // of a canvas.
   Get(node);
   if (node->IsElementNode())
     UpdateTreeIfElementIdIsAriaOwned(ToElement(node));
 }
@@ skipping 648 matching lines @@
   visitor->Trace(document_);
   visitor->Trace(node_object_mapping_);
 
   visitor->Trace(objects_);
   visitor->Trace(notifications_to_post_);
 
   AXObjectCache::Trace(visitor);
 }
 
 }  // namespace blink