Update renderer to layoutObject in core/html.

Source/core/html/forms/ImageInputType.cpp

Index: Source/core/html/forms/ImageInputType.cpp
diff --git a/Source/core/html/forms/ImageInputType.cpp b/Source/core/html/forms/ImageInputType.cpp
index 614e7f684d956fb686295f78f1114b7fc785be2f..6af32a1052d2242ffd1474d8f8fb0f581bf63f1e 100644
--- a/Source/core/html/forms/ImageInputType.cpp
+++ b/Source/core/html/forms/ImageInputType.cpp
@@ -161,11 +161,11 @@ void ImageInputType::startResourceLoading()
     HTMLImageLoader& imageLoader = element().ensureImageLoader();
     imageLoader.updateFromElement();
 
-    LayoutObject* renderer = element().layoutObject();
-    if (!renderer || !renderer->isLayoutImage())
+    LayoutObject* layoutObject = element().layoutObject();
+    if (!layoutObject || !layoutObject->isLayoutImage())
         return;
 
-    LayoutImageResource* imageResource = toLayoutImage(renderer)->imageResource();
+    LayoutImageResource* imageResource = toLayoutImage(layoutObject)->imageResource();
     imageResource->setImageResource(imageLoader.image());
 }