Include aria-label in acc name calculation.

Source/modules/accessibility/AXNodeObject.cpp

 /*
 * Copyright (C) 2012, 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 1823 matching lines @@
                 if (!result.isEmpty()) {
                     if (!accumulatedText.isEmpty())
                         accumulatedText.append(" ");
                     accumulatedText.append(result);
                 }
             }
         }
         return accumulatedText.toString();
     }
 
+    // Step 2C from: http://www.w3.org/TR/accname-aam-1.1
+    if (hasAttribute(aria_labelAttr)) {
+        const AtomicString& ariaLabel = getAttribute(aria_labelAttr);
+        if (!ariaLabel.isEmpty()) {
+            if (nameFrom)
+                *nameFrom = AXNameFromAttribute;
+            return ariaLabel;
+        }
+    }
+
     // Step 2F / 2G from: http://www.w3.org/TR/accname-aam-1.1
     if (recursive || nameFromContents()) {
         if (nameFrom)
             *nameFrom = AXNameFromContents;
 
         Node* node = this->node();
         if (node && node->isTextNode())
             return toText(node)->wholeText();
 
         StringBuilder accumulatedText;
@@ skipping 518 matching lines @@
         ariaLabeledByElements(elements);
 
         for (const auto& element : elements) {
             RefPtr<AXObject> axElement = axObjectCache()->getOrCreate(element);
             textOrder.append(AccessibilityText(ariaLabeledBy, AlternativeText, axElement));
         }
     }
 }
 
 } // namespace blink