A11y: Add/refactor methods for manipulating bitfields on AXNodeData.

content/renderer/accessibility/blink_ax_tree_source.cc

 // 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.
 
 #include "content/renderer/accessibility/blink_ax_tree_source.h"
 
 #include <stddef.h>
 
 #include <set>
 
@@ skipping 611 matching lines @@
       }
       dst->AddIntListAttribute(ui::AX_ATTR_MARKER_TYPES, marker_types);
       dst->AddIntListAttribute(ui::AX_ATTR_MARKER_STARTS, marker_starts);
       dst->AddIntListAttribute(ui::AX_ATTR_MARKER_ENDS, marker_ends);
     }
 
     if (src.IsInLiveRegion()) {
       dst->AddBoolAttribute(ui::AX_ATTR_LIVE_ATOMIC, src.LiveRegionAtomic());
       dst->AddBoolAttribute(ui::AX_ATTR_LIVE_BUSY, src.LiveRegionBusy());
       if (src.LiveRegionBusy())
-        dst->state |= (1 << ui::AX_STATE_BUSY);
+        dst->AddState(ui::AX_STATE_BUSY);
       if (!src.LiveRegionStatus().IsEmpty()) {
         dst->AddStringAttribute(ui::AX_ATTR_LIVE_STATUS,
                                 src.LiveRegionStatus().Utf8());
       }
       dst->AddStringAttribute(ui::AX_ATTR_LIVE_RELEVANT,
                               src.LiveRegionRelevant().Utf8());
       // If we are not at the root of an atomic live region.
       if (src.ContainerLiveRegionAtomic() &&
           !src.LiveRegionRoot().IsDetached() && !src.LiveRegionAtomic()) {
         dst->AddIntAttribute(ui::AX_ATTR_MEMBER_OF_ID,
@@ skipping 246 matching lines @@
     return WebAXObject();
 
   WebDocument document = render_frame_->GetWebFrame()->GetDocument();
   if (!document.IsNull())
     return document.AccessibilityObject();
 
   return WebAXObject();
 }
 
 }  // namespace content