Add a simple browser UI (with url bar)

mandoline/ui/browser/android/android_ui.h

+// 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.
+
+#ifndef MANDOLINE_UI_BROWSER_ANDROID_ANDROID_UI_H_
+#define MANDOLINE_UI_BROWSER_ANDROID_ANDROID_UI_H_
+
+namespace mojo {
+class Shell;
+class View;
+}
+
+namespace mandoline {
+
+class Browser;
+
+class AndroidUI : public BrowserUI {
+ public:
+  AndroidUI(Browser* browser, mojo::Shell* shell);
+  ~AndroidUI() override;
+
+ private:
+  // Overridden from BrowserUI:
+  void Init(mojo::View* root, mojo::View* content) override;
+
+  Browser* browser_;
+  mojo::Shell* shell_;
+  mojo::View* root_;
+  mojo::View* content_;
+
+  DISALLOW_COPY_AND_ASSIGN(AndroidUI);
+};
+
+}  // namespace mandoline
+
+#endif  // MANDOLINE_UI_BROWSER_ANDROID_ANDROID_UI_H_