[Aura] Implement views-based applist.

ui/aura_shell/test/test_shell_delegate.cc

Index: ui/aura_shell/test/test_shell_delegate.cc
diff --git a/ui/aura_shell/test/test_shell_delegate.cc b/ui/aura_shell/test/test_shell_delegate.cc
index 42414b7d15758bb171b67ffac2544e5cc606781d..0a58e7c880e273c69cf9cb34eae0513ed15d2f99 100644
--- a/ui/aura_shell/test/test_shell_delegate.cc
+++ b/ui/aura_shell/test/test_shell_delegate.cc
@@ -25,6 +25,13 @@ void TestShellDelegate::RequestAppListWidget(
     const SetWidgetCallback& callback) {
 }
 
+void TestShellDelegate::BuildAppListModel(AppListModel* model) {
+}
+
+AppListViewDelegate* TestShellDelegate::CreateAppListViewDelegate() {
+  return NULL;
+}
+
 void TestShellDelegate::LauncherItemClicked(const LauncherItem& item) {
 }