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

cc/ipc/filter_operation.mojom

 // Copyright 2016 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.
 
 module cc.mojom;
 
 import "skia/public/interfaces/image_filter.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 
 enum FilterType {
   GRAYSCALE,
   SEPIA,
   SATURATE,
   HUE_ROTATE,
   INVERT,
   BRIGHTNESS,
   CONTRAST,
   OPACITY,
   BLUR,
   DROP_SHADOW,
   COLOR_MATRIX,
   ZOOM,
   REFERENCE,
   SATURATING_BRIGHTNESS,
   ALPHA_THRESHOLD,
   FILTER_TYPE_LAST = ALPHA_THRESHOLD
 };
 
-// See cc/output/filter_operation.h.
+// See cc/paint/filter_operation.h.
 struct FilterOperation {
   FilterType type;
   float amount;
   gfx.mojom.Point drop_shadow_offset;
   uint32 drop_shadow_color;
   skia.mojom.ImageFilter image_filter;
   array<float, 20>? matrix;
   int32 zoom_inset;
   // Note: SkRegion is currently not needed for serialization.
 };