Add helpers for creating UI components.

mojo/ui/gl_view.cc

+// Copyright 2015 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 "mojo/ui/gl_view.h"
+
+#include "base/logging.h"
+
+namespace mojo {
+namespace ui {
+
+GLView::GLView(
+    mojo::ApplicationImpl* app_impl,
+    const std::string& label,
+    const mojo::ui::ViewProvider::CreateViewCallback& create_view_callback)
+    : BaseView(app_impl, label, create_view_callback),
+      gl_context_owner_(mojo::MakeProxy(app_impl->CreateApplicationConnector())
+                            .get()),
+      gl_renderer_(gl_context_owner_.context()) {}
+
+GLView::~GLView() {}
+
+}  // namespace ui
+}  // namespace mojo