Changed ComputedStyle's EVisibility to be an enum class and fixed naming

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

Index: third_party/WebKit/Source/modules/accessibility/AXObject.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXObject.cpp b/third_party/WebKit/Source/modules/accessibility/AXObject.cpp
index cbf02e1e2faa61931757e88c09d1637633a04656..9dad88c99054b016c89c6c7473b560664c83fde0 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObject.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXObject.cpp
@@ -761,7 +761,7 @@ bool AXObject::isHiddenForTextAlternativeCalculation() const
         return false;
 
     if (getLayoutObject())
-        return getLayoutObject()->style()->visibility() != VISIBLE;
+        return getLayoutObject()->style()->visibility() != EVisibility::Visible;
 
     // This is an obscure corner case: if a node has no LayoutObject, that means it's not rendered,
     // but we still may be exploring it as part of a text alternative calculation, for example if it
@@ -771,7 +771,7 @@ bool AXObject::isHiddenForTextAlternativeCalculation() const
     Document* doc = getDocument();
     if (doc && doc->frame() && getNode() && getNode()->isElementNode()) {
         RefPtr<ComputedStyle> style = doc->ensureStyleResolver().styleForElement(toElement(getNode()));
-        return style->display() == NONE || style->visibility() != VISIBLE;
+        return style->display() == NONE || style->visibility() != EVisibility::Visible;
     }
 
     return false;