Profile unlock should always use session restore, regardless of system preference.

chrome/browser/ui/startup/session_crashed_infobar_delegate_unittest.cc

 // Copyright (c) 2013 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/ui/startup/session_crashed_infobar_delegate.h"
 
+#include "base/files/scoped_temp_dir.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/run_loop.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/prefs/browser_prefs.h"
+#include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
 #include "chrome/test/base/scoped_testing_local_state.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "components/infobars/core/infobar.h"
 
 class SessionCrashedInfoBarDelegateUnitTest : public BrowserWithTestWindowTest {
  public:
   void SetUp() override {
     static_cast<TestingBrowserProcess*>(g_browser_process)
         ->SetLocalState(&pref_service);
     chrome::RegisterLocalState(pref_service.registry());
 
     // This needs to be called after the local state is set, because it will
     // create a browser which will try to read from the local state.
     BrowserWithTestWindowTest::SetUp();
+
+    // Make sure we have a Profile Manager.
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+    TestingBrowserProcess::GetGlobal()->SetProfileManager(
+        new ProfileManagerWithoutInit(temp_dir_.path()));
   }
 
   void TearDown() override {
     static_cast<TestingBrowserProcess*>(g_browser_process)->SetLocalState(NULL);
     BrowserWithTestWindowTest::TearDown();
+
+    TestingBrowserProcess::GetGlobal()->SetProfileManager(NULL);
   }
 
  private:
   TestingPrefServiceSimple pref_service;
+  base::ScopedTempDir temp_dir_;
 };
 
 TEST_F(SessionCrashedInfoBarDelegateUnitTest, DetachingTabWithCrashedInfoBar) {
   SessionServiceFactory::SetForTestProfile(
       browser()->profile(),
       static_cast<SessionService*>(
           SessionServiceFactory::GetInstance()->BuildServiceInstanceFor(
               browser()->profile())));
 
   // Create a browser which we can close during the test.
@@ skipping 33 matching lines @@
   infobar_service =
       InfoBarService::FromWebContents(tab_strip->GetWebContentsAt(0));
   EXPECT_EQ(1U, infobar_service->infobar_count());
 
   // This used to crash.
   infobar->Accept();
 
   // Ramp down the test.
   tab_strip->CloseWebContentsAt(0, TabStripModel::CLOSE_NONE);
 }