Purge the App Launcher code from Windows.

ui/app_list/views/test/app_list_view_test_api.cc

+// Copyright 2016 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 "ui/app_list/views/test/app_list_view_test_api.h"
+
+#include "ui/app_list/views/app_list_view.h"
+
+namespace app_list {
+namespace test {
+
+AppListViewTestApi::AppListViewTestApi(app_list::AppListView* view)
+    : view_(view) {}
+
+bool AppListViewTestApi::is_overlay_visible() {
+  DCHECK(view_->overlay_view_);
+  return view_->overlay_view_->visible();
+}
+
+void AppListViewTestApi::SetNextPaintCallback(const base::Closure& callback) {
+  view_->next_paint_callback_ = callback;
+}
+
+}  // namespace test
+}  // namespace app_list