DidNavigate refactor of doom

chrome/browser/session_service_test_helper.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/browser/session_service_test_helper.h"
 
 #include "chrome/browser/session_backend.h"
 #include "chrome/browser/session_service.h"
 #include "chrome/common/scoped_vector.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 51 matching lines @@
   EXPECT_TRUE(expected.url == actual.url);
   EXPECT_EQ(expected.title, actual.title);
   EXPECT_EQ(expected.state, actual.state);
   EXPECT_EQ(expected.transition, actual.transition);
   EXPECT_EQ(expected.type_mask, actual.type_mask);
 }
 
 void SessionServiceTestHelper::AssertSingleWindowWithSingleTab(
     const std::vector<SessionWindow*>& windows,
     int nav_count) {
-  EXPECT_EQ(1, windows.size());
+  ASSERT_EQ(1, windows.size());
   EXPECT_EQ(1, windows[0]->tabs.size());
   EXPECT_EQ(nav_count, windows[0]->tabs[0]->navigations.size());
 }
 
 SessionBackend* SessionServiceTestHelper::backend() {
   return service_->backend_.get();
 }