Add test for WebBluetooth chooser spinner, status text and rescan button

chrome/browser/ui/views/chooser_content_view.h

 // 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 CHROME_BROWSER_UI_VIEWS_CHOOSER_CONTENT_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_CHOOSER_CONTENT_VIEW_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 44 matching lines @@
 
   // views::StyledLabelListener:
   void StyledLabelLinkClicked(views::StyledLabel* label,
                               const gfx::Range& range,
                               int event_flags) override;
 
   base::string16 GetWindowTitle() const;
   base::string16 GetDialogButtonLabel(ui::DialogButton button) const;
   bool IsDialogButtonEnabled(ui::DialogButton button) const;
   // Ownership of the view is passed to the caller.
-  views::View* CreateExtraView();
+  views::Link* CreateExtraView();
   // Ownership of the view is passed to the caller.
   views::StyledLabel* CreateFootnoteView();
   void Accept();
   void Cancel();
   void Close();
   void UpdateTableView();
 
   views::TableView* table_view_for_test() const { return table_view_; }
+  views::Throbber* throbber_for_test() const { return throbber_; }
+  views::Link* discovery_state_for_test() const { return discovery_state_; }
   views::StyledLabel* styled_label_for_test() const { return styled_label_; }
 
  private:
   std::unique_ptr<ChooserController> chooser_controller_;
   views::TableView* table_view_;                // Weak.
   views::Throbber* throbber_;                   // Weak.
   views::Link* discovery_state_ = nullptr;      // Weak.
   views::StyledLabel* styled_label_ = nullptr;  // Weak.
 
   DISALLOW_COPY_AND_ASSIGN(ChooserContentView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_CHOOSER_CONTENT_VIEW_H_