[cros] Fix regression with user profile being loaded before profile dir is mounted.

chrome/browser/chrome_browser_main.cc

 // Copyright (c) 2011 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/chrome_browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 405 matching lines @@
 Profile* CreateProfile(const MainFunctionParams& parameters,
                        const FilePath& user_data_dir,
                        const CommandLine& parsed_command_line) {
   Profile* profile;
   if (ProfileManager::IsMultipleProfilesEnabled() &&
       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
     g_browser_process->local_state()->SetString(prefs::kProfileLastUsed,
         parsed_command_line.GetSwitchValueASCII(
             switches::kProfileDirectory));
   }
+#if defined(OS_CHROMEOS)
+  // TODO(ivankr): http://crbug.com/83792
+  profile = g_browser_process->profile_manager()->GetDefaultProfile(
+      user_data_dir);
+#else
   profile = g_browser_process->profile_manager()->GetLastUsedProfile(
       user_data_dir);
+#endif
   if (profile)
     return profile;
 
 #if defined(OS_WIN)
 #if defined(USE_AURA)
   // TODO(beng):
   NOTIMPLEMENTED();
 #else
   // Ideally, we should be able to run w/o access to disk.  For now, we
   // prompt the user to pick a different user-data-dir and restart chrome
@@ skipping 1688 matching lines @@
   if (env->GetVar(chrome::kPreReadEnvironmentVariable, &pre_read) &&
       (pre_read == "0" || pre_read == "1")) {
     std::string uma_name(name);
     uma_name += "_PreRead";
     uma_name += pre_read == "1" ? "Enabled" : "Disabled";
     AddPreReadHistogramTime(uma_name.c_str(), time);
   }
 #endif
 #endif
 }