Make classes and structures in core/paint fast-allocated.

Source/core/paint/TablePainter.h

Index: Source/core/paint/TablePainter.h
diff --git a/Source/core/paint/TablePainter.h b/Source/core/paint/TablePainter.h
index 773a4ce001c9fe25d589473e94df4efb9589a6d7..cdb972ae9ebda94e664a73f1cfe96642308610ba 100644
--- a/Source/core/paint/TablePainter.h
+++ b/Source/core/paint/TablePainter.h
@@ -5,6 +5,8 @@
 #ifndef TablePainter_h
 #define TablePainter_h
 
+#include "wtf/Allocator.h"
+
 namespace blink {
 
 class LayoutPoint;
@@ -12,6 +14,7 @@ class LayoutTable;
 struct PaintInfo;
 
 class TablePainter {
+    STACK_ALLOCATED();
 public:
     TablePainter(LayoutTable& layoutTable) : m_layoutTable(layoutTable) { }