Update from https://crrev.com/306655

cc/test/skia_common.cc

 // Copyright 2012 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/test/skia_common.h"
 
+#include "cc/resources/display_item_list.h"
 #include "cc/resources/picture.h"
 #include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/skia_util.h"
 
 namespace cc {
 
 void DrawPicture(unsigned char* buffer,
                  const gfx::Rect& layer_rect,
                  scoped_refptr<Picture> picture) {
   SkImageInfo info =
       SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
   SkBitmap bitmap;
   bitmap.installPixels(info, buffer, info.minRowBytes());
   SkCanvas canvas(bitmap);
   canvas.clipRect(gfx::RectToSkRect(layer_rect));
   // We're drawing the entire canvas, so the negated content region is empty.
   gfx::Rect negated_content_region;
   picture->Raster(&canvas, NULL, negated_content_region, 1.0f);
 }
 
+void DrawDisplayList(unsigned char* buffer,
+                     const gfx::Rect& layer_rect,
+                     scoped_refptr<DisplayItemList> list) {
+  SkImageInfo info =
+      SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
+  SkBitmap bitmap;
+  bitmap.installPixels(info, buffer, info.minRowBytes());
+  SkCanvas canvas(bitmap);
+  canvas.clipRect(gfx::RectToSkRect(layer_rect));
+  list->Raster(&canvas, NULL, 1.0f);
+}
+
 void CreateBitmap(const gfx::Size& size, const char* uri, SkBitmap* bitmap) {
   SkImageInfo info = SkImageInfo::MakeN32Premul(size.width(), size.height());
 
   bitmap->allocPixels(info);
   bitmap->pixelRef()->setImmutable();
   bitmap->pixelRef()->setURI(uri);
 }
 
 }  // namespace cc