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

chrome/test/perf/generate_profile.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/test/perf/generate_profile.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
@@ skipping 211 matching lines @@
   // random number generator with the number of urls we're generating.
   srand(static_cast<unsigned int>(url_count));
 
   printf("Creating profiles for testing...\n");
 
   InitBrowserProcess initialize_browser_process;
   base::MessageLoopForUI message_loop;
   content::TestBrowserThread ui_thread(BrowserThread::UI, &message_loop);
   content::TestBrowserThread db_thread(BrowserThread::DB, &message_loop);
   TestingProfile profile;
-  profile.CreateHistoryService(false, false);
+  if (!profile.CreateHistoryService(false, false)) {
+      PLOG(ERROR) << "Creating history service failed";
+      return false;
+  }
   if (types & TOP_SITES) {
     profile.CreateTopSites();
     profile.BlockUntilTopSitesLoaded();
   }
 
   // The maximum number of URLs to insert into history in one batch.
   const int kBatchSize = 2000;
   int page_id = 0;
   while (page_id < url_count) {
     const int batch_size = std::min(kBatchSize, url_count - page_id);
@@ skipping 21 matching lines @@
     path = file_iterator.Next();
   }
 
   printf("Finished creating profiles for testing.\n");
 
   // Restore the random seed.
   srand(static_cast<unsigned int>(Time::Now().ToInternalValue()));
 
   return true;
 }