Rename renderer to layoutObject in core/editing.

Source/core/editing/markup.cpp

Index: Source/core/editing/markup.cpp
diff --git a/Source/core/editing/markup.cpp b/Source/core/editing/markup.cpp
index 7fd348afaa733a5d98ffc5868a1822cd914f026c..aa3484c5d3f5e310ec1a9d0bf8c6f2fe3781c4ba 100644
--- a/Source/core/editing/markup.cpp
+++ b/Source/core/editing/markup.cpp
@@ -438,13 +438,13 @@ bool isPlainTextMarkup(Node* node)
 static bool shouldPreserveNewline(const Range& range)
 {
     if (Node* node = range.firstNode()) {
-        if (LayoutObject* renderer = node->layoutObject())
-            return renderer->style()->preserveNewline();
+        if (LayoutObject* layoutObject = node->layoutObject())
+            return layoutObject->style()->preserveNewline();
     }
 
     if (Node* node = range.startPosition().anchorNode()) {
-        if (LayoutObject* renderer = node->layoutObject())
-            return renderer->style()->preserveNewline();
+        if (LayoutObject* layoutObject = node->layoutObject())
+            return layoutObject->style()->preserveNewline();
     }
 
     return false;