Update from https://crrev.com/306655

cc/blink/web_content_layer_impl.cc

Index: cc/blink/web_content_layer_impl.cc
diff --git a/cc/blink/web_content_layer_impl.cc b/cc/blink/web_content_layer_impl.cc
index d0a4cca4722b57166a92947c8de69e977729a4d7..9757ff3b4a068cacb1b08cfb8cdb656e5be8b6b7 100644
--- a/cc/blink/web_content_layer_impl.cc
+++ b/cc/blink/web_content_layer_impl.cc
@@ -4,6 +4,7 @@
 
 #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"
@@ -63,6 +64,25 @@ void WebContentLayerImpl::PaintContents(
           : 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;
 }