Always load signin profile on Chrome OS startup.

chrome/browser/profiles/profile_browsertest.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/profiles/profile.h"
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_reader.h"
 #include "base/prefs/pref_service.h"
 #include "base/sequenced_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/profiles/chrome_version_service.h"
 #include "chrome/browser/profiles/profile_impl.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/profiles/startup_task_runner_service.h"
 #include "chrome/browser/profiles/startup_task_runner_service_factory.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "content/public/test/test_utils.h"
@@ skipping 324 matching lines @@
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   ProfileManager* profile_manager = g_browser_process->profile_manager();
   ASSERT_TRUE(profile_manager);
   std::vector<Profile*> loaded_profiles = profile_manager->GetLoadedProfiles();
 
   ASSERT_NE(loaded_profiles.size(), 0UL);
   Profile* profile = loaded_profiles[0];
 
+#if defined(OS_CHROMEOS)
+  for (const auto& loaded_profile : loaded_profiles) {
+    if (!chromeos::ProfileHelper::IsSigninProfile(loaded_profile)) {
+      profile = loaded_profile;
+    }
+  }
+#endif
+
   // This retry loop reduces flakiness due to the fact that this ultimately
   // tests whether or not a code path hits a timed wait.
   bool succeeded = false;
   for (size_t retries = 0; !succeeded && retries < 3; ++retries) {
     // Flush the profile data to disk for all loaded profiles.
     profile->SetExitType(Profile::EXIT_CRASHED);
     FlushTaskRunner(profile->GetIOTaskRunner().get());
 
     // Make sure that the prefs file was written with the expected key/value.
     ASSERT_EQ(GetExitTypePreferenceFromDisk(profile), "Crashed");
@@ skipping 19 matching lines @@
     ASSERT_EQ(GetExitTypePreferenceFromDisk(profile), "SessionEnded");
 
     // Mark the success.
     succeeded = true;
   }
 
   ASSERT_TRUE(succeeded) << "profile->EndSession() timed out too often.";
 }
 
 #endif  // defined(USE_X11) || defined(OS_WIN)