Add chrome side webusb permission UI code

chrome/browser/ui/views/website_settings/chooser_bubble_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 CHROME_BROWSER_UI_VIEWS_WEBSITE_SETTINGS_CHOOSER_BUBBLE_UI_H_
+#define CHROME_BROWSER_UI_VIEWS_WEBSITE_SETTINGS_CHOOSER_BUBBLE_UI_H_
+
+#include "components/bubble/bubble_ui.h"
+#include "ui/views/bubble/bubble_border.h"
+
+namespace views {
+class View;
+}
+
+class Browser;
+class ChooserBubbleUiDelegate;
+class WebUsbPermissionBubbleRequest;
+
+// ChooserBubbleUi implements a chooser-based permission model,
+// it uses table view to show a list of items (such as usb devices, etc.)
+// for user to grant permission. It can be used by WebUsb, WebBluetooth.
+class ChooserBubbleUi : public BubbleUi {
+ public:
+  ChooserBubbleUi(Browser* browser, WebUsbPermissionBubbleRequest* request);
+  ~ChooserBubbleUi() override;
+
+  // BubbleUi:
+  void Show(BubbleReference bubble_reference) override;
+  void Close() override;
+  void UpdateAnchorPosition() override;
+
+  void Connect(int index);
+  void Cancel();
+
+ private:
+  views::View* GetAnchorView();
+  views::BubbleBorder::Arrow GetAnchorArrow();
+
+  Browser* browser_;
+  WebUsbPermissionBubbleRequest* request_;

[Reilly Grant (use Gerrit), 2015/10/20 22:17:07]

Instead of holding the request here bubble_delegate_ should probably receive the
index of the selected option.

[juncai, 2015/10/23 03:36:42]

Done.

+  ChooserBubbleUiDelegate* bubble_delegate_;
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_WEBSITE_SETTINGS_CHOOSER_BUBBLE_UI_H_