Show device connection and paired status in chooser on Mac

chrome/browser/chooser_controller/chooser_controller.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_CHOOSER_CONTROLLER_CHOOSER_CONTROLLER_H_
 #define CHROME_BROWSER_CHOOSER_CONTROLLER_CHOOSER_CONTROLLER_H_
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 
@@ skipping 67 matching lines @@
   virtual size_t NumOptions() const = 0;
 
   // The signal strength level (0-4 inclusive) of the device at |index|, which
   // is used to retrieve the corresponding icon to be displayed before the
   // text. Returns -1 if no icon should be shown.
   virtual int GetSignalStrengthLevel(size_t index) const;
 
   // The |index|th option string which is listed in the chooser.
   virtual base::string16 GetOption(size_t index) const = 0;
 
+  // Returns if the |index|th option is connected.

[Jeffrey Yasskin, 2016/09/07 02:01:47]

For virtual functions with a default, mention the default in the .h.

[juncai, 2016/09/09 20:06:15]

Done.

+  virtual bool IsConnected(size_t index) const;
+
+  // Returns if the |index|th option is paired.
+  virtual bool IsPaired(size_t index) const;
+
   // Refresh the list of options.
   virtual void RefreshOptions() = 0;
 
   // Returns the status text to be shown in the chooser.
   virtual base::string16 GetStatus() const = 0;
 
   // These three functions are called just before this object is destroyed:
 
   // Called when the user selects the |index|th element from the dialog.
   virtual void Select(size_t index) = 0;
@@ skipping 15 matching lines @@
  private:
   content::RenderFrameHost* const owning_frame_;
   const int title_string_id_origin_;
   const int title_string_id_extension_;
   View* view_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(ChooserController);
 };
 
 #endif  // CHROME_BROWSER_CHOOSER_CONTROLLER_CHOOSER_CONTROLLER_H_