Replace RenderArena with PartitionAlloc.

Source/core/rendering/style/ContentData.cpp

Index: Source/core/rendering/style/ContentData.cpp
diff --git a/Source/core/rendering/style/ContentData.cpp b/Source/core/rendering/style/ContentData.cpp
index a11d0aa3c654c3c79229878b8e2fee27e858a7cb..678157968e987237fbeae074141cd9cd2188789c 100644
--- a/Source/core/rendering/style/ContentData.cpp
+++ b/Source/core/rendering/style/ContentData.cpp
@@ -79,21 +79,21 @@ RenderObject* ImageContentData::createRenderer(Document* doc, RenderStyle* pseud
 
 RenderObject* TextContentData::createRenderer(Document* doc, RenderStyle* pseudoStyle) const
 {
-    RenderObject* renderer = new (doc->renderArena()) RenderTextFragment(doc, m_text.impl());
+    RenderObject* renderer = new RenderTextFragment(doc, m_text.impl());
     renderer->setPseudoStyle(pseudoStyle);
     return renderer;
 }
 
 RenderObject* CounterContentData::createRenderer(Document* doc, RenderStyle* pseudoStyle) const
 {
-    RenderObject* renderer = new (doc->renderArena()) RenderCounter(doc, *m_counter);
+    RenderObject* renderer = new RenderCounter(doc, *m_counter);
     renderer->setPseudoStyle(pseudoStyle);
     return renderer;
 }
 
 RenderObject* QuoteContentData::createRenderer(Document* doc, RenderStyle* pseudoStyle) const
 {
-    RenderObject* renderer = new (doc->renderArena()) RenderQuote(doc, m_quote);
+    RenderObject* renderer = new RenderQuote(doc, m_quote);
     renderer->setPseudoStyle(pseudoStyle);
     return renderer;
 }