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

chrome/browser/ui/startup/startup_browser_creator.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/ui/startup/startup_browser_creator.h"
 
 #include <algorithm>   // For max().
 #include <set>
 
 #include "base/bind.h"
@@ skipping 567 matching lines @@
     Profile* profile,
     Profile::CreateStatus status) {
   if (status == Profile::CREATE_STATUS_INITIALIZED)
     ProcessCmdLineImpl(cmd_line, cur_dir, false, profile, Profiles(), NULL,
                        NULL);
 }
 
 // static
 void StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
     const CommandLine& cmd_line,
-    const FilePath& cur_dir) {
-  if (cmd_line.HasSwitch(switches::kProfileDirectory)) {
-    ProfileManager* profile_manager = g_browser_process->profile_manager();
-    FilePath path = cmd_line.GetSwitchValuePath(switches::kProfileDirectory);
-    path = profile_manager->user_data_dir().Append(path);
-    profile_manager->CreateProfileAsync(path,
+    const FilePath& cur_dir,
+    const FilePath& profile_path) {
+  ProfileManager* profile_manager = g_browser_process->profile_manager();
+  FilePath user_data_dir = profile_manager->user_data_dir();

[benwells, 2013/01/18 06:18:46]

Is user_data_dir used?

[koz (OOO until 15th September), 2013/01/20 23:32:00]

Oops, nope. Removed.

+  Profile* profile = profile_manager->GetProfileByPath(profile_path);
+
+  // The profile isn't loaded yet and so needs to be loaded asynchronously.
+  if (!profile) {
+    profile_manager->CreateProfileAsync(profile_path,
         base::Bind(&StartupBrowserCreator::ProcessCommandLineOnProfileCreated,
                    cmd_line, cur_dir), string16(), string16(), false);
     return;
   }
 
-  Profile* profile = ProfileManager::GetLastUsedProfile();
-  if (!profile) {
-    // We should only be able to get here if the profile already exists and
-    // has been created.
-    NOTREACHED();
-    return;
-  }
   ProcessCmdLineImpl(cmd_line, cur_dir, false, profile, Profiles(), NULL, NULL);
 }
 
 bool HasPendingUncleanExit(Profile* profile) {
   return profile->GetLastSessionExitType() == Profile::EXIT_CRASHED &&
       !profile_launch_observer.Get().HasBeenLaunched(profile);
 }