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

cc/paint/clip_display_item.cc

Index: cc/paint/clip_display_item.cc
diff --git a/cc/playback/clip_display_item.cc b/cc/paint/clip_display_item.cc
similarity index 95%
rename from cc/playback/clip_display_item.cc
rename to cc/paint/clip_display_item.cc
index 8e9a9cfabe4ff49404f79de34da158f8cdd84238..2f406ec4ea8319d28a284b7b50b4e8419ced7a3c 100644
--- a/cc/playback/clip_display_item.cc
+++ b/cc/paint/clip_display_item.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "cc/playback/clip_display_item.h"
+#include "cc/paint/clip_display_item.h"
 
 #include <stddef.h>
 
@@ -49,8 +49,7 @@ void ClipDisplayItem::Raster(SkCanvas* canvas,
 
 EndClipDisplayItem::EndClipDisplayItem() : DisplayItem(END_CLIP) {}
 
-EndClipDisplayItem::~EndClipDisplayItem() {
-}
+EndClipDisplayItem::~EndClipDisplayItem() {}
 
 void EndClipDisplayItem::Raster(SkCanvas* canvas,
                                 SkPicture::AbortCallback* callback) const {