Unittest for fix to allow navigation when there is no history DB....

chrome/test/testing_profile.cc

 // Copyright (c) 2006-2008 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/testing_profile.h"
 
 #include "build/build_config.h"
 #include "base/string_util.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/history/history_backend.h"
@@ skipping 86 matching lines @@
   path_ = path_.AppendASCII(IntToString(count));
   file_util::Delete(path_, true);
   file_util::CreateDirectory(path_);
 }
 
 TestingProfile::~TestingProfile() {
   DestroyHistoryService();
   file_util::Delete(path_, true);
 }
 
-void TestingProfile::CreateHistoryService(bool delete_file) {
+void TestingProfile::CreateHistoryService(bool delete_file, bool no_db) {
   if (history_service_.get())
     history_service_->Cleanup();
 
   history_service_ = NULL;
 
   if (delete_file) {
     FilePath path = GetPath();
     path = path.Append(chrome::kHistoryFilename);
     file_util::Delete(path, false);
   }
   history_service_ = new HistoryService(this);
-  history_service_->Init(GetPath(), bookmark_bar_model_.get());
+  history_service_->Init(GetPath(), bookmark_bar_model_.get(), no_db);
 }
 
 void TestingProfile::DestroyHistoryService() {
   if (!history_service_.get())
     return;
 
   history_service_->NotifyRenderProcessHostDestruction(0);
   history_service_->SetOnBackendDestroyTask(new MessageLoop::QuitTask);
   history_service_->Cleanup();
   history_service_ = NULL;
@@ skipping 74 matching lines @@
 void TestingProfile::CreateProfileSyncService() {
   if (!profile_sync_service_.get()) {
     profile_sync_service_.reset(new ProfileSyncService(this));
     profile_sync_service_->Initialize();
   }
 }
 
 ProfileSyncService* TestingProfile::GetProfileSyncService() {
   return profile_sync_service_.get();
 }