Replace RenderArena with PartitionAlloc.

Source/core/rendering/RenderView.h

Index: Source/core/rendering/RenderView.h
diff --git a/Source/core/rendering/RenderView.h b/Source/core/rendering/RenderView.h
index 3b93e29bdc6aff7e0bd2e6cf5346ff626d20a9bc..4c26486a169dbe14fcde9a23006a1c6677e96e3d 100644
--- a/Source/core/rendering/RenderView.h
+++ b/Source/core/rendering/RenderView.h
@@ -221,7 +221,7 @@ private:
             || (renderer->isRenderBlock() && toRenderBlock(renderer)->exclusionShapeInsideInfo())
             || (m_layoutState->exclusionShapeInsideInfo() && renderer->isRenderBlock() && !toRenderBlock(renderer)->allowsExclusionShapeInsideInfoSharing())
             ) {
-            m_layoutState = new (renderArena()) LayoutState(m_layoutState, renderer, offset, pageHeight, pageHeightChanged, colInfo);
+            m_layoutState = new LayoutState(m_layoutState, renderer, offset, pageHeight, pageHeightChanged, colInfo);
             return true;
         }
         return false;
@@ -231,7 +231,7 @@ private:
     {
         LayoutState* state = m_layoutState;
         m_layoutState = state->m_next;
-        state->destroy(renderArena());
+        state->destroy();
     }
 
     // Suspends the LayoutState optimization. Used under transforms that cannot be represented by