Serialize DisplayListRecordingSource to protos.

cc/playback/display_item_list.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/playback/display_item_list.h"
 
 #include <string>
 
 #include "base/numerics/safe_conversions.h"
 #include "base/strings/stringprintf.h"
@@ skipping 49 matching lines @@
                               DisplayItemListSettings(proto.settings()));
 
   for (int i = 0; i < proto.items_size(); i++) {
     const proto::DisplayItem& item_proto = proto.items(i);
     DisplayItem* item = DisplayItemProtoFactory::AllocateAndConstruct(
         layer_rect, list.get(), item_proto);
     if (item)
       item->FromProtobuf(item_proto);
   }
 
+  list->Finalize();
+
   return list;
 }
 
 DisplayItemList::DisplayItemList(gfx::Rect layer_rect,
                                  const DisplayItemListSettings& settings,
                                  bool retain_individual_display_items)
     : items_(LargestDisplayItemSize(),
              LargestDisplayItemSize() * kDefaultNumDisplayItemsToReserve),
       settings_(settings),
       retain_individual_display_items_(retain_individual_display_items),
@@ skipping 240 matching lines @@
           DisplayItemsTracingEnabled()));
 }
 
 void DisplayItemList::GenerateDiscardableImagesMetadata() {
   DCHECK(ProcessAppendedItemsCalled());
   // This should be only called once, and only after CreateAndCacheSkPicture.
   DCHECK(image_map_.empty());
   DCHECK(!settings_.use_cached_picture || picture_);
   if (settings_.use_cached_picture && !picture_->willPlayBackBitmaps())
     return;
-
   // The cached picture is translated by -layer_rect_.origin during record,
   // so we need to offset that back in order to get right positioning for
   // images.
   DiscardableImageMap::ScopedMetadataGenerator generator(
       &image_map_, gfx::Size(layer_rect_.right(), layer_rect_.bottom()));
   Raster(generator.canvas(), nullptr,
          gfx::Rect(layer_rect_.right(), layer_rect_.bottom()), 1.f);
 }
 
 void DisplayItemList::GetDiscardableImagesInRect(
     const gfx::Rect& rect,
     float raster_scale,
     std::vector<DrawImage>* images) {
   image_map_.GetDiscardableImagesInRect(rect, raster_scale, images);
 }
 
 }  // namespace cc