Introduce AndroidFocusRules and NativeWidgetAndroid

ui/views/widget/android/android_focus_rules.h

Index: ui/views/widget/android/android_focus_rules.h
diff --git a/ui/views/widget/android/android_focus_rules.h b/ui/views/widget/android/android_focus_rules.h
new file mode 100644
index 0000000000000000000000000000000000000000..efb23b90fdec0d4f50644f701c225c80c950d90a
--- /dev/null
+++ b/ui/views/widget/android/android_focus_rules.h
@@ -0,0 +1,28 @@
+// Copyright (c) 2015 The Chromium Authors. All rights reserved.

[sadrul, 2015/11/04 19:00:53]

I don't think we use (c) anymore? (too bad we don't have tooling for this :/)

[bshe, 2015/11/11 00:38:28]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_VIEWS_WIDGET_ANDROID_ANDROID_FOCUS_RULES_H_
+#define UI_VIEWS_WIDGET_ANDROID_ANDROID_FOCUS_RULES_H_
+
+#include "base/macros.h"
+#include "ui/wm/core/base_focus_rules.h"
+
+namespace views {
+
+// A set of focus rules for Android using aura.
+class AndroidFocusRules : public wm::BaseFocusRules {
+ public:
+  AndroidFocusRules();
+  ~AndroidFocusRules() override;
+
+ private:
+  // ::wm::BaseFocusRules:

[sadrul, 2015/11/04 19:00:53]

Just wm

[bshe, 2015/11/11 00:38:28]

Done.

+  bool SupportsChildActivation(aura::Window* window) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(AndroidFocusRules);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_WIDGET_ANDROID_ANDROID_FOCUS_RULES_H_