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

cc/paint/clip_display_item.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // 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"
 
 namespace cc {
 
 ClipDisplayItem::ClipDisplayItem(const gfx::Rect& clip_rect,
                                  std::vector<SkRRect> rounded_clip_rects,
                                  bool antialias)
     : DisplayItem(CLIP),
       clip_rect(clip_rect),
       rounded_clip_rects(std::move(rounded_clip_rects)),
       antialias(antialias) {}
 
 ClipDisplayItem::~ClipDisplayItem() = default;
 
 EndClipDisplayItem::EndClipDisplayItem() : DisplayItem(END_CLIP) {}
 
 EndClipDisplayItem::~EndClipDisplayItem() = default;
 
 }  // namespace cc