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

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index 558380fd94ea63cc4d32ca309eebc794800e5b1a..6f20cf44693c770631c0a6caa0593b1c771507c9 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -85,6 +85,7 @@
 #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"
@@ -310,13 +311,32 @@ PrefService* InitializeLocalState(
   return local_state;
 }
 
+FilePath GetStartupProfilePath(const FilePath& user_data_dir,

[sky, 2013/01/22 23:56:18]

Add description.

[koz (OOO until 15th September), 2013/01/23 00:07:55]

Done.

+                               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,
@@ -328,14 +348,11 @@ Profile* CreateProfile(const content::MainFunctionParams& parameters,
     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;
 
@@ -429,8 +446,13 @@ bool ProcessSingletonNotificationCallback(const CommandLine& command_line,
     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;
 }