Fix some minor typos related to the word "accessibility".

Source/core/accessibility/AXNodeObject.cpp

Index: Source/core/accessibility/AXNodeObject.cpp
diff --git a/Source/core/accessibility/AXNodeObject.cpp b/Source/core/accessibility/AXNodeObject.cpp
index e192536078f014eb8d23ef0ee022c9cc6442d01e..80dc7bbc3cc1989b8dfffab6c844cadb76f748e7 100644
--- a/Source/core/accessibility/AXNodeObject.cpp
+++ b/Source/core/accessibility/AXNodeObject.cpp
@@ -1119,7 +1119,7 @@ AccessibilityRole AXNodeObject::ariaRoleAttribute() const
 
 // When building the textUnderElement for an object, determine whether or not
 // we should include the inner text of this given descendant object or skip it.
-static bool shouldUseAccessiblityObjectInnerText(AXObject* obj)
+static bool shouldUseAccessibilityObjectInnerText(AXObject* obj)
 {
     // Consider this hypothetical example:
     // <div tabindex=0>
@@ -1161,7 +1161,7 @@ String AXNodeObject::textUnderElement() const
 
     StringBuilder builder;
     for (AXObject* child = firstChild(); child; child = child->nextSibling()) {
-        if (!shouldUseAccessiblityObjectInnerText(child))
+        if (!shouldUseAccessibilityObjectInnerText(child))
             continue;
 
         if (child->isAXNodeObject()) {