Update from https://crrev.com/306655

cc/blink/BUILD.gn

 # 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.
 
 # GYP version: //cc/blink/cc_blink.gyp:cc_blink
 component("blink") {
   output_name = "cc_blink"
 
   public_deps = [
     "//skia",
@@ skipping 15 matching lines @@
     "scrollbar_impl.cc",
     "scrollbar_impl.h",
     "web_animation_curve_common.cc",
     "web_animation_curve_common.h",
     "web_animation_impl.cc",
     "web_animation_impl.h",
     "web_compositor_support_impl.cc",
     "web_compositor_support_impl.h",
     "web_content_layer_impl.cc",
     "web_content_layer_impl.h",
+    "web_display_item_list_impl.cc",
+    "web_display_item_list_impl.h",
     "web_external_bitmap_impl.cc",
     "web_external_bitmap_impl.h",
     "web_external_texture_layer_impl.cc",
     "web_external_texture_layer_impl.h",
     "web_filter_animation_curve_impl.cc",
     "web_filter_animation_curve_impl.h",
     "web_filter_operations_impl.cc",
     "web_filter_operations_impl.h",
     "web_float_animation_curve_impl.cc",
     "web_float_animation_curve_impl.h",
@@ skipping 34 matching lines @@
       "//cc:test_support",
     ]
 
     sources = [
       "web_animation_unittest.cc",
       "web_float_animation_curve_unittest.cc",
       "web_layer_impl_fixed_bounds_unittest.cc",
     ]
   }
 }