Enable profile switching for standalone App Launcher via the Settings App.

chrome/browser/chrome_browser_main.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/chrome_browser_main.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 67 matching lines @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/search_engines/search_engine_type.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_prepopulate_data.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/service/service_process_control.h"
 #include "chrome/browser/shell_integration.h"
 #include "chrome/browser/translate/translate_manager.h"
+#include "chrome/browser/ui/app_list/app_list_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/startup/default_browser_prompt.h"
 #include "chrome/browser/ui/startup/startup_browser_creator.h"
 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
 #include "chrome/browser/ui/user_data_dir_dialog.h"
 #include "chrome/common/child_process_logging.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_result_codes.h"
@@ skipping 206 matching lines @@
         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
       local_state->SetString(prefs::kApplicationLocale, owner_locale);
     }
   }
 #endif
 
   return local_state;
 }
 
+FilePath GetStartupProfilePath(const FilePath& user_data_dir,
+                               const CommandLine& command_line) {
+#if defined(OS_CHROMEOS)
+  // TODO(ivankr): http://crbug.com/83792
+  return g_browser_process->profile_manager()->GetDefaultProfileDir(
+      user_data_dir);
+#endif
+
+  if (command_line.HasSwitch(switches::kProfileDirectory)) {
+    return user_data_dir.Append(
+        command_line.GetSwitchValuePath(switches::kProfileDirectory));
+  }
+
+  if (command_line.HasSwitch(switches::kShowAppList))
+    return chrome::GetAppListProfilePath(user_data_dir);
+
+  return g_browser_process->profile_manager()->GetLastUsedProfilePath(
+      user_data_dir);
+}
+
 // Initializes the profile, possibly doing some user prompting to pick a
 // fallback profile. Returns the newly created profile, or NULL if startup
 // should not continue.
 Profile* CreateProfile(const content::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));
     // Clear kProfilesLastActive since the user only wants to launch a specific
     // profile.
     ListPrefUpdate update(g_browser_process->local_state(),
                           prefs::kProfilesLastActive);
     ListValue* profile_list = update.Get();
     profile_list->Clear();
   }
-#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
+
+  FilePath profile_path =
+      GetStartupProfilePath(user_data_dir, parsed_command_line);
+  Profile* profile = g_browser_process->profile_manager()->GetProfile(
+      profile_path);
   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 73 matching lines @@
       // We should never be called before the profile has been created.
       NOTREACHED();
       return true;
     }
 
     extensions::StartupHelper extension_startup_helper;
     extension_startup_helper.UninstallExtension(command_line, profile);
     return true;
   }
 
+  FilePath user_data_dir =
+      g_browser_process->profile_manager()->user_data_dir();
+  FilePath startup_profile_dir =
+      GetStartupProfilePath(user_data_dir, command_line);
+
   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
-      command_line, current_directory);
+      command_line, current_directory, startup_profile_dir);
   return true;
 }
 
 void LaunchDevToolsHandlerIfNeeded(Profile* profile,
                                    const CommandLine& command_line) {
   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
     std::string port_str =
         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
     int port;
     if (base::StringToInt(port_str, &port) && port > 0 && port < 65535) {
@@ skipping 1220 matching lines @@
     if (base::win::GetVersion() <= base::win::VERSION_XP)
       uma_name += "_XP";
 
     uma_name += "_PreRead_";
     uma_name += pre_read_percentage;
     AddPreReadHistogramTime(uma_name.c_str(), time);
   }
 #endif
 #endif
 }