Add asserts to TestingProfile::CreateHistoryService to ensure files are deleted

chrome/browser/history/history_backend_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 <algorithm>
 #include <set>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 2773 matching lines @@
   EXPECT_EQ(url1.spec(), data[1]->GetURL().spec());
   EXPECT_EQ(url1_id, data[1]->GetID());
   EXPECT_EQ(segment1_time_delta.InHours(), data[1]->duration().InHours());
 }
 
 // Simple test that removes a bookmark. This test exercises the code paths in
 // History that block till bookmark bar model is loaded.
 TEST_F(HistoryBackendTest, RemoveNotification) {
   scoped_ptr<TestingProfile> profile(new TestingProfile());
 
-  profile->CreateHistoryService(false, false);
+  ASSERT_TRUE(profile->CreateHistoryService(false, false));
   profile->CreateBookmarkModel(true);
   BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile.get());
   ui_test_utils::WaitForBookmarkModelToLoad(model);
 
   // Add a URL.
   GURL url("http://www.google.com");
   bookmark_utils::AddIfNotBookmarked(model, url, base::string16());
 
   HistoryService* service = HistoryServiceFactory::GetForProfile(
       profile.get(), Profile::EXPLICIT_ACCESS);
 
   service->AddPage(
       url, base::Time::Now(), NULL, 1, GURL(), RedirectList(),
       content::PAGE_TRANSITION_TYPED, SOURCE_BROWSED, false);
 
   // This won't actually delete the URL, rather it'll empty out the visits.
   // This triggers blocking on the BookmarkModel.
   service->DeleteURL(url);
 }
 
 }  // namespace history