Replace RenderArena with PartitionAlloc

Source/core/html/shadow/TextControlInnerElements.cpp

Index: Source/core/html/shadow/TextControlInnerElements.cpp
diff --git a/Source/core/html/shadow/TextControlInnerElements.cpp b/Source/core/html/shadow/TextControlInnerElements.cpp
index 366b7dfc7f6c0e645ce6e57f3802976bc2490b1f..367c9bda3add8ef50700762a53623269054bd1a2 100644
--- a/Source/core/html/shadow/TextControlInnerElements.cpp
+++ b/Source/core/html/shadow/TextControlInnerElements.cpp
@@ -59,7 +59,7 @@ PassRefPtr<TextControlInnerContainer> TextControlInnerContainer::create(Document
 
 RenderObject* TextControlInnerContainer::createRenderer(RenderStyle*)
 {
-    return new (document()->renderArena()) RenderTextControlInnerContainer(this);
+    return new RenderTextControlInnerContainer(this);
 }
 
 TextControlInnerElement::TextControlInnerElement(Document* document)
@@ -113,7 +113,7 @@ void TextControlInnerTextElement::defaultEventHandler(Event* event)
 
 RenderObject* TextControlInnerTextElement::createRenderer(RenderStyle*)
 {
-    return new (document()->renderArena()) RenderTextControlInnerBlock(this);
+    return new RenderTextControlInnerBlock(this);
 }
 
 PassRefPtr<RenderStyle> TextControlInnerTextElement::customStyleForRenderer()