Compute accessible name of objects with ARIA role of 'row' if they can receive focus

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

 /*
  * Copyright (C) 2008, 2009, 2011 Apple 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 1751 matching lines @@
     case kRadioButtonRole:
     case kRowHeaderRole:
     case kStaticTextRole:
     case kStatusRole:
     case kSwitchRole:
     case kTabRole:
     case kToggleButtonRole:
     case kTreeItemRole:
     case kUserInterfaceTooltipRole:
       return true;
+    case kRowRole: {
+      // Spec says we should always expose the name on rows,
+      // but for performance reasons we only do it
+      // if the row might receive focus
+      if (AncestorExposesActiveDescendant()) {
+        return true;
+      }
+      const Node* node = this->GetNode();
+      return node && node->IsElementNode() && ToElement(node)->IsFocusable();
+    }
     default:
       return false;
   }
 }
 
 AccessibilityRole AXObject::ButtonRoleType() const {
   // If aria-pressed is present, then it should be exposed as a toggle button.
   // http://www.w3.org/TR/wai-aria/states_and_properties#aria-pressed
   if (AriaPressedIsPresent())
     return kToggleButtonRole;
@@ skipping 19 matching lines @@
 }
 
 DEFINE_TRACE(AXObject) {
   visitor->Trace(children_);
   visitor->Trace(parent_);
   visitor->Trace(cached_live_region_root_);
   visitor->Trace(ax_object_cache_);
 }
 
 }  // namespace blink