Offer user to send feedback from profile error dialog

components/webdata_services/web_data_service_wrapper.h

 // Copyright 2014 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 COMPONENTS_WEBDATA_SERVICES_WEB_DATA_SERVICE_WRAPPER_H_
 #define COMPONENTS_WEBDATA_SERVICES_WEB_DATA_SERVICE_WRAPPER_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
@@ skipping 28 matching lines @@
  public:
   // ErrorType indicates which service encountered an error loading its data.
   enum ErrorType {
     ERROR_LOADING_AUTOFILL,
     ERROR_LOADING_KEYWORD,
     ERROR_LOADING_TOKEN,
     ERROR_LOADING_PASSWORD,
   };
 
   // Shows an error message if a loading error occurs.
-  using ShowErrorCallback = void (*)(ErrorType, sql::InitStatus);
+  // |error_type| shows which service encountered an error while loading.
+  // |init_status| is the returned status of initializing the underlying
+  // database.
+  // |diagnostics| contains information about the underlying database
+  // which can help in identifying the cause of the error.
+  using ShowErrorCallback = void (*)(ErrorType error_type,
+                                     sql::InitStatus init_status,
+                                     const std::string& diagnostics);
 
   // Constructor for WebDataServiceWrapper that initializes the different
   // WebDataServices and starts the synchronization services using |flare|.
   // Since |flare| will be copied and called multiple times, it cannot bind
   // values using base::Owned nor base::Passed; it should only bind simple or
   // refcounted types.
   WebDataServiceWrapper(
       const base::FilePath& context_path,
       const std::string& application_locale,
       const scoped_refptr<base::SingleThreadTaskRunner>& ui_thread,
@@ skipping 26 matching lines @@
   scoped_refptr<TokenWebData> token_web_data_;
 
 #if defined(OS_WIN)
   scoped_refptr<PasswordWebDataService> password_web_data_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(WebDataServiceWrapper);
 };
 
 #endif  // COMPONENTS_WEBDATA_SERVICES_WEB_DATA_SERVICE_WRAPPER_H_