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

chrome/browser/browser_main.cc

 // Copyright (c) 2010 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/browser_main.h"
 
 #include <algorithm>
 
 #include "app/hi_res_timer_manager.h"
 #include "app/l10n_util.h"
@@ skipping 112 matching lines @@
 #endif  // defined(OS_WIN)
 
 #if defined(TOOLKIT_VIEWS)
 #include "chrome/browser/views/chrome_views_delegate.h"
 #include "views/focus/accelerator_handler.h"
 #endif
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/external_metrics.h"
+#include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/views/browser_dialogs.h"
 #endif
 
 namespace {
 
 // This function provides some ways to test crash and assertion handling
 // behavior of the program.
 void HandleTestParameters(const CommandLine& command_line) {
   // This parameter causes an assertion.
   if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
@@ skipping 586 matching lines @@
   if (parsed_command_line.HasSwitch(switches::kHideIcons) ||
       parsed_command_line.HasSwitch(switches::kShowIcons))
     return HandleIconsCommands(parsed_command_line);
   if (parsed_command_line.HasSwitch(switches::kMakeDefaultBrowser)) {
     return ShellIntegration::SetAsDefaultBrowser() ?
         ResultCodes::NORMAL_EXIT : ResultCodes::SHELL_INTEGRATION_FAILED;
   }
 
   // Try to create/load the profile.
   ProfileManager* profile_manager = browser_process->profile_manager();
+#if defined(OS_CHROMEOS)
+  if (parsed_command_line.HasSwitch(switches::kLoginUser)) {
+    std::string username =
+        parsed_command_line.GetSwitchValueASCII(switches::kLoginUser);
+    LOG(INFO) << "Relaunching browser for user: " << username;
+    chromeos::UserManager::Get()->UserLoggedIn(username);
+  }
+#endif
+
   Profile* profile = profile_manager->GetDefaultProfile(user_data_dir);
 
 #if defined(OS_WIN)
   if (!profile) {
     // 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
     // with the new dir.
     // http://code.google.com/p/chromium/issues/detail?id=11510
     user_data_dir = UserDataDirDialog::RunUserDataDirDialog(user_data_dir);
     if (!parameters.ui_task && browser_shutdown::delete_resources_on_shutdown) {
@@ skipping 282 matching lines @@
   if (metrics)
     metrics->Stop();
 
   // browser_shutdown takes care of deleting browser_process, so we need to
   // release it.
   browser_process.release();
   browser_shutdown::Shutdown();
 
   return result_code;
 }