Add signal strength indicator icon to WebBluetooth chooser on non-Mac desktops

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 24 matching lines @@
                      std::unique_ptr<ChooserController> chooser_controller);
   ~ChooserContentView() override;
 
   // views::View:
   gfx::Size GetPreferredSize() const override;
 
   // ui::TableModel:
   int RowCount() override;
   base::string16 GetText(int row, int column_id) override;
   void SetObserver(ui::TableModelObserver* observer) override;
+  gfx::ImageSkia GetIcon(int row) override;
 
   // ChooserController::View:
   void OnOptionsInitialized() override;
   void OnOptionAdded(size_t index) override;
   void OnOptionRemoved(size_t index) override;
   void OnOptionUpdated(size_t index) override;
   void OnAdapterEnabledChanged(bool enabled) override;
   void OnRefreshStateChanged(bool refreshing) override;
 
   // views::LinkListener:
@@ skipping 23 matching lines @@
   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_