Move cc::DisplayItemList and related classes into cc/paint/

cc/paint/drawing_display_item.h

Index: cc/paint/drawing_display_item.h
diff --git a/cc/playback/drawing_display_item.h b/cc/paint/drawing_display_item.h
similarity index 70%
rename from cc/playback/drawing_display_item.h
rename to cc/paint/drawing_display_item.h
index 0295a78264da0e168b4d3d4662f1a663282fee44..56c7b17aef2f41780896d5a51dd904bf9befd9d0 100644
--- a/cc/playback/drawing_display_item.h
+++ b/cc/paint/drawing_display_item.h
@@ -2,19 +2,19 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CC_PLAYBACK_DRAWING_DISPLAY_ITEM_H_
-#define CC_PLAYBACK_DRAWING_DISPLAY_ITEM_H_
+#ifndef CC_PAINT_DRAWING_DISPLAY_ITEM_H_
+#define CC_PAINT_DRAWING_DISPLAY_ITEM_H_
 
 #include <stddef.h>
 
-#include "cc/base/cc_export.h"
+#include "cc/paint/display_item.h"
+#include "cc/paint/paint_export.h"
 #include "cc/paint/paint_record.h"
-#include "cc/playback/display_item.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 
 namespace cc {
 
-class CC_EXPORT DrawingDisplayItem : public DisplayItem {
+class CC_PAINT_EXPORT DrawingDisplayItem : public DisplayItem {
  public:
   DrawingDisplayItem();
   explicit DrawingDisplayItem(sk_sp<const PaintRecord> record);
@@ -29,4 +29,4 @@ class CC_EXPORT DrawingDisplayItem : public DisplayItem {
 
 }  // namespace cc
 
-#endif  // CC_PLAYBACK_DRAWING_DISPLAY_ITEM_H_
+#endif  // CC_PAINT_DRAWING_DISPLAY_ITEM_H_