Replace RenderArena with PartitionAlloc.

Source/core/rendering/InlineBox.h

Index: Source/core/rendering/InlineBox.h
diff --git a/Source/core/rendering/InlineBox.h b/Source/core/rendering/InlineBox.h
index a7025cf58e2d5c446dc3660b8bd1ceb376d23057..5b05282f5996f8cbb1a1eef42e5d986b0b873b4f 100644
--- a/Source/core/rendering/InlineBox.h
+++ b/Source/core/rendering/InlineBox.h
@@ -63,9 +63,12 @@ public:
 
     virtual ~InlineBox();
 
-    virtual void destroy(RenderArena*);
+    virtual void destroy();
+#if ENABLE(PARTITION_ALLOC)
+    void* operator new(size_t);
+#endif
 
-    virtual void deleteLine(RenderArena*);
+    virtual void deleteLine();
     virtual void extractLine();
     virtual void attachLine();
 
@@ -97,17 +100,6 @@ public:
     virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom);
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom);
 
-    // Overloaded new operator.
-    void* operator new(size_t, RenderArena*);
-
-    // Overridden to prevent the normal delete from being called.
-    void operator delete(void*, size_t);
-
-private:
-    // The normal operator new is disallowed.
-    void* operator new(size_t) throw();
-
-public:
 #ifndef NDEBUG
     void showTreeForThis() const;
     void showLineTreeForThis() const;
@@ -397,6 +389,9 @@ private:
     InlineBoxBitfields m_bitfields;
 
 protected:
+#if ENABLE(PARTITION_ALLOC)
+    void operator delete(void*);
+#endif
     // For RootInlineBox
     bool endsWithBreak() const { return m_bitfields.endsWithBreak(); }
     void setEndsWithBreak(bool endsWithBreak) { m_bitfields.setEndsWithBreak(endsWithBreak); }