Add profile selector menu to app list.

ui/app_list/views/app_list_main_view.cc

Index: ui/app_list/views/app_list_main_view.cc
diff --git a/ui/app_list/views/app_list_main_view.cc b/ui/app_list/views/app_list_main_view.cc
index d3791ad9c9a5a556b9046efcb325ea13c1cc1be2..1e7c5b5436dee5f73426ab7f214a783b7387bb5a 100644
--- a/ui/app_list/views/app_list_main_view.cc
+++ b/ui/app_list/views/app_list_main_view.cc
@@ -104,7 +104,7 @@ AppListMainView::AppListMainView(AppListViewDelegate* delegate,
   contents_view_->layer()->SetMasksToBounds(true);
 #endif
 
-  search_box_view_->SetModel(model_->search_box());
+  search_box_view_->SetModel(model_);
   contents_view_->SetModel(model_);
 }
 
@@ -112,6 +112,12 @@ AppListMainView::~AppListMainView() {
   pending_icon_loaders_.clear();
 }
 
+void AppListMainView::SetModel(AppListModel* model) {
+  model_ = model;
+  search_box_view_->SetModel(model_);
+  contents_view_->SetModel(model_);
+}
+
 void AppListMainView::ShowAppListWhenReady() {
   if (pending_icon_loaders_.empty()) {
     icon_loading_wait_timer_.Stop();