Add profile selector menu to app list.

ui/app_list/app_list_menu.cc

Index: ui/app_list/app_list_menu.cc
diff --git a/ui/app_list/app_list_menu.cc b/ui/app_list/app_list_menu.cc
index 95d6ac38d91b3acc2f6355b56a68e241dd00d953..6d48a70c6e466cbe0f1af4c617951e0826a09f1f 100644
--- a/ui/app_list/app_list_menu.cc
+++ b/ui/app_list/app_list_menu.cc
@@ -7,6 +7,7 @@
 #include "grit/ui_strings.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/base/models/avatar_menu_item_model.h"
 #include "ui/base/models/menu_separator_types.h"
 #include "ui/base/resource/resource_bundle.h"
 
@@ -14,6 +15,7 @@ namespace app_list {
 
 AppListMenu::AppListMenu(AppListViewDelegate* delegate)
     : menu_model_(this),
+      profiles_model_(this),
       delegate_(delegate) {
   InitMenu();
 }
@@ -21,7 +23,16 @@ AppListMenu::AppListMenu(AppListViewDelegate* delegate)
 AppListMenu::~AppListMenu() {}
 
 void AppListMenu::InitMenu() {
-  menu_model_.AddItem(CURRENT_USER, base::string16());
+  std::vector<AvatarMenuItemModel> items = delegate_->GetAvatarMenuItems();
+  // Don't show the profile selector submenu if there is only one profile.
+  if (items.size() == 1) {
+    menu_model_.AddItem(CURRENT_USER, base::string16());
+  } else {
+    for (size_t i = 0; i < items.size(); ++i) {
+      profiles_model_.AddItem(SELECT_PROFILE + i, items[i].name);
+    }
+    menu_model_.AddSubMenu(CURRENT_USER, base::string16(), &profiles_model_);
+  }
   menu_model_.AddSeparator(ui::NORMAL_SEPARATOR);
 
   menu_model_.AddItem(SHOW_SETTINGS, l10n_util::GetStringUTF16(
@@ -48,6 +59,11 @@ bool AppListMenu::GetAcceleratorForCommandId(int command_id,
 }
 
 void AppListMenu::ExecuteCommand(int command_id, int event_flags) {
+  if (command_id >= SELECT_PROFILE) {
+    delegate_->ShowForProfileAtIndex(
+        static_cast<size_t>(command_id - SELECT_PROFILE));
+    return;
+  }
   switch (command_id) {
     case CURRENT_USER:
       break;  // Do nothing.