Ensure that data doesn't leak between users on cros chrome crash.

chrome/browser/process_singleton_linux.cc

Index: chrome/browser/process_singleton_linux.cc
diff --git a/chrome/browser/process_singleton_linux.cc b/chrome/browser/process_singleton_linux.cc
index 0ff9a57dcbf32d8249166760c2af7cf2a068b1c0..10d632188df167663127eca8ea84faa586c19a1e 100644
--- a/chrome/browser/process_singleton_linux.cc
+++ b/chrome/browser/process_singleton_linux.cc
@@ -505,23 +505,7 @@ void ProcessSingleton::LinuxWatcher::HandleMessage(
   PrefService* prefs = g_browser_process->local_state();
   DCHECK(prefs);
 
-  FilePath user_data_dir;
-  PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
-  ProfileManager* profile_manager = g_browser_process->profile_manager();
-
-#if defined(OS_CHROMEOS)
-  Profile* profile;
-  if (parsed_command_line.HasSwitch(switches::kProfile)) {
-    std::wstring profile_dir =
-        parsed_command_line.GetSwitchValue(switches::kProfile);
-    profile = profile_manager->GetProfile(
-        user_data_dir.Append(FilePath::FromWStringHack(profile_dir)));
-  } else {
-    profile = profile_manager->GetDefaultProfile(user_data_dir);
-  }
-#else
-  Profile* profile = profile_manager->GetDefaultProfile(user_data_dir);
-#endif
+  Profile* profile = ProfileManager::GetDefaultProfile();
 
   if (!profile) {
     // We should only be able to get here if the profile already exists and