Add UMA for the number of devices in the chooser when a device is paired

content/public/browser/web_contents_delegate.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 356 matching lines @@
   // chooser in directory-enumeration mode and having the user select the given
   // directory.
   virtual void EnumerateDirectory(WebContents* web_contents,
                                   int request_id,
                                   const base::FilePath& path) {}
 
   // Shows a chooser for the user to select a nearby Bluetooth device. The
   // observer must live at least as long as the returned chooser object.
   virtual std::unique_ptr<BluetoothChooser> RunBluetoothChooser(
       RenderFrameHost* frame,
-      const BluetoothChooser::EventHandler& event_handler);
+      const BluetoothChooser::EventHandler& event_handler,
+      bool accept_all_devices);
 
   // Returns true if the delegate will embed a WebContents-owned fullscreen
   // render widget.  In this case, the delegate may access the widget by calling
   // WebContents::GetFullscreenRenderWidgetHostView().  If false is returned,
   // WebContents will be responsible for showing the fullscreen widget.
   virtual bool EmbedsFullscreenWidget() const;
 
   // Called when the renderer puts a tab into fullscreen mode.
   // |origin| is the origin of the initiating frame inside the |web_contents|.
   // |origin| can be empty in which case the |web_contents| last committed
@@ skipping 179 matching lines @@
   // Called when |this| is no longer the WebContentsDelegate for |source|.
   void Detach(WebContents* source);
 
   // The WebContents that this is currently a delegate for.
   std::set<WebContents*> attached_contents_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_