Add unittests of ArcCustomNotificationView

ui/message_center/views/custom_notification_view.h

Index: ui/message_center/views/custom_notification_view.h
diff --git a/ui/message_center/views/custom_notification_view.h b/ui/message_center/views/custom_notification_view.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ec27a4531110bfb41bf5dc2d8533a7fde37d734
--- /dev/null
+++ b/ui/message_center/views/custom_notification_view.h
@@ -0,0 +1,68 @@
+// 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.
+
+#ifndef UI_MESSAGE_CENTER_VIEWS_CUSTOM_NOTIFICATION_VIEW_H_
+#define UI_MESSAGE_CENTER_VIEWS_CUSTOM_NOTIFICATION_VIEW_H_
+
+#include "base/macros.h"
+#include "ui/message_center/message_center_export.h"
+#include "ui/message_center/views/message_view.h"
+
+namespace views {
+class Painter;
+}
+
+namespace message_center {
+
+// View for notification with NOTIFICATION_TYPE_CUSTOM that hosts the custom
+// content of the notification.
+class MESSAGE_CENTER_EXPORT CustomNotificationView : public MessageView {
+ public:
+  static const char kViewClassName[];
+
+  CustomNotificationView(MessageCenterController* controller,
+                         const Notification& notification);
+  ~CustomNotificationView() override;
+
+  // These method are called by the content view when focus handling is defered
+  // to the content.
+  void OnContentFocused();
+  void OnContentBlured();
+
+  // Overidden from MessageView:
+  void SetDrawBackgroundAsActive(bool active) override;
+  bool IsCloseButtonFocused() const override;
+  void RequestFocusOnCloseButton() override;
+  bool IsPinned() const override;
+  void UpdateControlButtonsVisibility() override;
+
+  // Overridden from views::View:
+  const char* GetClassName() const override;
+  gfx::Size GetPreferredSize() const override;
+  void Layout() override;
+  bool HasFocus() const override;
+  void RequestFocus() override;
+  void OnPaint(gfx::Canvas* canvas) override;
+  bool OnKeyPressed(const ui::KeyEvent& event) override;
+  void ChildPreferredSizeChanged(View* child) override;
+  bool OnMousePressed(const ui::MouseEvent& event) override;
+
+  views::View* GetContentsViewForTesting() const { return contents_view_; }
+
+ private:
+  friend class CustomNotificationViewTest;
+
+  // The view for the custom content. Owned by view hierarchy.
+  views::View* contents_view_ = nullptr;
+  std::unique_ptr<CustomNotificationContentViewDelegate>
+      contents_view_delegate_;
+
+  std::unique_ptr<views::Painter> focus_painter_;
+
+  DISALLOW_COPY_AND_ASSIGN(CustomNotificationView);
+};
+
+}  // namespace message_center
+
+#endif  // UI_MESSAGE_CENTER_VIEWS_CUSTOM_NOTIFICATION_VIEW_H_