Add additional stats for print preview.

chrome/browser/ui/webui/print_preview/print_preview_handler.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 CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 127 matching lines @@
   // |args| is unused.
   void HandleManagePrinters(const base::ListValue* args);
 
   // Asks the browser to show the cloud print dialog.
   void HandlePrintWithCloudPrint();
 
   // Asks the browser for several settings that are needed before the first
   // preview is displayed.
   void HandleGetInitialSettings(const base::ListValue* args);
 
+  // Reports histogram data for the print destination UI.
+  void HandleReportDestinationEvent(const base::ListValue* args);
+
   void SendInitialSettings(
       const std::string& default_printer,
       const std::string& cloud_print_data);
 
   // Sends the printer capabilities to the Web UI. |settings_info| contains
   // printer capabilities information.
   void SendPrinterCapabilities(const base::DictionaryValue& settings_info);
 
   // Send the list of printers to the Web UI.
   void SetupPrinterList(const base::ListValue& printers);
@@ skipping 30 matching lines @@
 
   // The underlying dialog object.
   scoped_refptr<SelectFileDialog> select_file_dialog_;
 
   // A count of how many requests received to regenerate preview data.
   // Initialized to 0 then incremented and emitted to a histogram.
   int regenerate_preview_request_count_;
 
   // A count of how many requests received to show manage printers dialog.
   int manage_printers_dialog_request_count_;
+  int manage_cloud_printers_dialog_request_count_;
 
   // Whether we have already logged a failed print preview.
   bool reported_failed_preview_;
 
   // Whether we have already logged the number of printers this session.
   bool has_logged_printers_count_;
 
   // Holds the path to the print to pdf request. It is empty if no such request
   // exists.
   scoped_ptr<FilePath> print_to_pdf_path_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_