Use app list item shadow for app list folders.

chrome/browser/ui/app_list/fast_show_pickler.cc

 // Copyright 2013 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 "chrome/browser/ui/app_list/fast_show_pickler.h"
 
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/gfx/image/image_skia_rep.h"
 
@@ skipping 141 matching lines @@
   if (!it->ReadString(&id))
     return scoped_ptr<AppListItem>();
   scoped_ptr<AppListItem> result(new AppListItem(id));
   std::string name;
   if (!it->ReadString(&name))
     return scoped_ptr<AppListItem>();
   std::string short_name;
   if (!it->ReadString(&short_name))
     return scoped_ptr<AppListItem>();
   result->SetNameAndShortName(name, short_name);
-  bool has_shadow = false;
-  if (!it->ReadBool(&has_shadow))
-    return scoped_ptr<AppListItem>();
   gfx::ImageSkia icon;
   if (!UnpickleImage(it, &icon))
     return scoped_ptr<AppListItem>();
-  result->SetIcon(icon, has_shadow);
+  result->SetIcon(icon);
   return result.Pass();
 }
 
 bool FastShowPickler::PickleAppListItem(Pickle* pickle, AppListItem* item) {
   if (!pickle->WriteString(item->id()))
     return false;
   if (!pickle->WriteString(item->name()))
     return false;
   if (!pickle->WriteString(item->short_name()))
     return false;
-  if (!pickle->WriteBool(item->has_shadow()))
-    return false;
   if (!PickleImage(pickle, item->icon()))
     return false;
   return true;
 }
 
 void FastShowPickler::CopyOverItem(AppListItem* src_item,
                                    AppListItem* dest_item) {
   dest_item->SetNameAndShortName(src_item->name(), src_item->short_name());
-  dest_item->SetIcon(src_item->icon(), src_item->has_shadow());
+  dest_item->SetIcon(src_item->icon());
   // Do not set folder_id, pass that to AppListModel::AddItemToFolder() instead.
 }
 
 // The version of the pickle format defined here. This needs to be incremented
 // whenever this format is changed so new clients can invalidate old versions.
 const int FastShowPickler::kVersion = 3;

[Matt Giuca, 2015/06/03 01:16:00]

Update to 4 (because removing WriteBool has changed the format).

[calamity, 2015/06/03 03:23:30]

Done.

 
 scoped_ptr<Pickle> FastShowPickler::PickleAppListModelForFastShow(
     AppListModel* model) {
   scoped_ptr<Pickle> result(new Pickle);
   if (!result->WriteInt(kVersion))
     return scoped_ptr<Pickle>();
   if (!result->WriteInt((int)model->top_level_item_list()->item_count()))
     return scoped_ptr<Pickle>();
   for (size_t i = 0; i < model->top_level_item_list()->item_count(); ++i) {
     if (!PickleAppListItem(result.get(),
@@ skipping 30 matching lines @@
   for (int i = 0; i < app_count; ++i) {
     scoped_ptr<AppListItem> item(UnpickleAppListItem(&it).Pass());
     if (!item)
       return scoped_ptr<AppListModel>();
     std::string folder_id = item->folder_id();
     model->AddItemToFolder(item.Pass(), folder_id);
   }
 
   return model.Pass();
 }