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

chrome/browser/autocomplete/history_quick_provider_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/autocomplete/history_quick_provider.h"
 
 #include <algorithm>
 #include <functional>
 #include <set>
 #include <string>
@@ skipping 133 matching lines @@
   scoped_ptr<TestingProfile> profile_;
   HistoryService* history_service_;
 
   ACMatches ac_matches_;  // The resulting matches after running RunTest.
 
   scoped_refptr<HistoryQuickProvider> provider_;
 };
 
 void HistoryQuickProviderTest::SetUp() {
   profile_.reset(new TestingProfile());
-  profile_->CreateHistoryService(true, false);
+  ASSERT_TRUE(profile_->CreateHistoryService(true, false));
   profile_->CreateBookmarkModel(true);
   ui_test_utils::WaitForBookmarkModelToLoad(profile_.get());
   profile_->BlockUntilHistoryIndexIsRefreshed();
   history_service_ =
       HistoryServiceFactory::GetForProfile(profile_.get(),
                                            Profile::EXPLICIT_ACCESS);
   EXPECT_TRUE(history_service_);
   provider_ = new HistoryQuickProvider(this, profile_.get());
   TemplateURLServiceFactory::GetInstance()->SetTestingFactoryAndUse(
       profile_.get(), &HistoryQuickProviderTest::CreateTemplateURLService);
@@ skipping 456 matching lines @@
 }
 
 TEST_F(HQPOrderingTest, TEAMatch) {
   std::vector<std::string> expected_urls;
   expected_urls.push_back("http://www.teamliquid.net/");
   expected_urls.push_back("http://www.teamliquid.net/tlpd");
   expected_urls.push_back("http://www.teamliquid.net/tlpd/korean/players");
   RunTest(ASCIIToUTF16("tea"), expected_urls, true,
           ASCIIToUTF16("www.teamliquid.net"));
 }