Fix object ownership in ui/base/models.

chrome/browser/browsing_data/cookies_tree_model_unittest.cc

 // Copyright (c) 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 "chrome/browser/browsing_data/cookies_tree_model.h"
 
 #include <string>
 
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
@@ skipping 404 matching lines @@
   std::string GetDisplayedFlashLSOs(CookiesTreeModel* cookies_model) {
     return GetDisplayedNodes(
         cookies_model, CookieTreeNode::DetailedInfo::TYPE_FLASH_LSO);
   }
 
   // Do not call on the root.
   void DeleteStoredObjects(CookieTreeNode* node) {
     node->DeleteStoredObjects();
     CookieTreeNode* parent_node = node->parent();
     DCHECK(parent_node);
-    delete parent_node->GetModel()->Remove(parent_node, node);
+    parent_node->GetModel()->Remove(parent_node, node);
   }
 
  protected:
   ExtensionSpecialStoragePolicy* special_storage_policy() {
 #if defined(ENABLE_EXTENSIONS)
     return special_storage_policy_.get();
 #else
     return nullptr;
 #endif
   }
@@ skipping 1211 matching lines @@
                              mock_browsing_data_flash_lso_helper_.get());
   CookiesTreeModel cookies_model(container, special_storage_policy());
 
   mock_browsing_data_cookie_helper_->
       AddCookieSamples(GURL(), "A=1");
   mock_browsing_data_cookie_helper_->Notify();
   EXPECT_EQ("A", GetDisplayedCookies(&cookies_model));
 }
 
 }  // namespace