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

cc/paint/display_item.h

Index: cc/paint/display_item.h
diff --git a/cc/playback/display_item.h b/cc/paint/display_item.h
similarity index 78%
rename from cc/playback/display_item.h
rename to cc/paint/display_item.h
index 8e56d21cdbf6403db820987901df617d42b526a4..74a3c5965dec741a9cc2d8210cde5cfea3b8e41b 100644
--- a/cc/playback/display_item.h
+++ b/cc/paint/display_item.h
@@ -2,21 +2,22 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CC_PLAYBACK_DISPLAY_ITEM_H_
-#define CC_PLAYBACK_DISPLAY_ITEM_H_
+#ifndef CC_PAINT_DISPLAY_ITEM_H_
+#define CC_PAINT_DISPLAY_ITEM_H_
 
 #include <stddef.h>
 
 #include <memory>
 
-#include "cc/base/cc_export.h"
+#include "cc/cc_export.h"
 #include "cc/debug/traced_value.h"
+#include "cc/paint/paint_export.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace cc {
 
-class CC_EXPORT DisplayItem {
+class CC_PAINT_EXPORT DisplayItem {
  public:
   virtual ~DisplayItem() = default;
 
@@ -43,4 +44,4 @@ class CC_EXPORT DisplayItem {
 
 }  // namespace cc
 
-#endif  // CC_PLAYBACK_DISPLAY_ITEM_H_
+#endif  // CC_PAINT_DISPLAY_ITEM_H_