Update from https://crrev.com/306655

cc/blink/web_content_layer_impl.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/blink/web_content_layer_impl.h"
 
+#include "cc/blink/web_display_item_list_impl.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/picture_layer.h"
 #include "third_party/WebKit/public/platform/WebContentLayerClient.h"
 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 #include "third_party/WebKit/public/platform/WebFloatRect.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
 
 using cc::ContentLayer;
@@ skipping 39 matching lines @@
   // TODO(danakj): Stop passing this to blink it should always use LCD when it
   // wants to. crbug.com/430617
   bool can_use_lcd_text = true;
   client_->paintContents(
       canvas, clip, can_use_lcd_text,
       graphics_context_status == ContentLayerClient::GRAPHICS_CONTEXT_ENABLED
           ? blink::WebContentLayerClient::GraphicsContextEnabled
           : blink::WebContentLayerClient::GraphicsContextDisabled);
 }
 
+scoped_refptr<cc::DisplayItemList>
+WebContentLayerImpl::PaintContentsToDisplayList(
+    const gfx::Rect& clip,
+    ContentLayerClient::GraphicsContextStatus graphics_context_status) {
+  if (!client_)
+    return cc::DisplayItemList::Create();
+
+  WebDisplayItemListImpl list;
+#if WEB_DISPLAY_ITEM_LIST_IS_DEFINED
+  bool can_use_lcd_text = true;
+  client_->paintContents(
+      &list, clip, can_use_lcd_text,
+      graphics_context_status == ContentLayerClient::GRAPHICS_CONTEXT_ENABLED
+          ? blink::WebContentLayerClient::GraphicsContextEnabled
+          : blink::WebContentLayerClient::GraphicsContextDisabled);
+#endif
+  return list.ToDisplayItemList();
+}
+
 bool WebContentLayerImpl::FillsBoundsCompletely() const {
   return false;
 }
 
 }  // namespace cc_blink