Update renderer to layoutObject in core/html.

Source/core/html/HTMLAreaElement.cpp

Index: Source/core/html/HTMLAreaElement.cpp
diff --git a/Source/core/html/HTMLAreaElement.cpp b/Source/core/html/HTMLAreaElement.cpp
index 7fc5d29aeb450e6b7b0e51e2e410e64739564298..3a52f137ffc596e88593c7242a96f65f7950e2b7 100644
--- a/Source/core/html/HTMLAreaElement.cpp
+++ b/Source/core/html/HTMLAreaElement.cpp
@@ -214,11 +214,11 @@ void HTMLAreaElement::setFocus(bool shouldBeFocused)
     if (!imageElement)
         return;
 
-    LayoutObject* renderer = imageElement->layoutObject();
-    if (!renderer || !renderer->isImage())
+    LayoutObject* layoutObject = imageElement->layoutObject();
+    if (!layoutObject || !layoutObject->isImage())
         return;
 
-    toLayoutImage(renderer)->areaElementFocusChanged(this);
+    toLayoutImage(layoutObject)->areaElementFocusChanged(this);
 }
 
 void HTMLAreaElement::updateFocusAppearance(bool restorePreviousSelection)