Offer user to send feedback from profile error dialog

components/history/core/browser/history_backend.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 COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_BACKEND_H_
 #define COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_BACKEND_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 14 matching lines @@
 #include "base/supports_user_data.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "build/build_config.h"
 #include "components/favicon_base/favicon_usage_data.h"
 #include "components/history/core/browser/expire_history_backend.h"
 #include "components/history/core/browser/history_backend_notifier.h"
 #include "components/history/core/browser/history_types.h"
 #include "components/history/core/browser/keyword_id.h"
 #include "components/history/core/browser/thumbnail_database.h"
 #include "components/history/core/browser/visit_tracker.h"
+#include "sql/db_diagnostic_map.h"
 #include "sql/init_status.h"
 
 class HistoryURLProvider;
 struct HistoryURLProviderParams;
 class SkBitmap;
 class TestingProfile;
 struct ThumbnailScore;
 
 namespace base {
 class MessageLoop;
@@ skipping 61 matching lines @@
  public:
   // Interface implemented by the owner of the HistoryBackend object. Normally,
   // the history service implements this to send stuff back to the main thread.
   // The unit tests can provide a different implementation if they don't have
   // a history service object.
   class Delegate {
    public:
     virtual ~Delegate() {}
 
     // Called when the database cannot be read correctly for some reason.
-    virtual void NotifyProfileError(sql::InitStatus init_status) = 0;
+    virtual void NotifyProfileError(
+        sql::InitStatus init_status,
+        const sql::DatabaseDiagnosticMap& diagnostics) = 0;
 
     // Sets the in-memory history backend. The in-memory backend is created by
     // the main backend. For non-unit tests, this happens on the background
     // thread. It is to be used on the main thread, so this would transfer
     // it to the history service. Unit tests can override this behavior.
     //
     // This function is NOT guaranteed to be called. If there is an error,
     // there may be no in-memory database.
     virtual void SetInMemoryBackend(
         std::unique_ptr<InMemoryHistoryBackend> backend) = 0;
@@ skipping 690 matching lines @@
   base::FilePath history_dir_;
 
   // The history/thumbnail databases. Either may be null if the database could
   // not be opened, all users must first check for null and return immediately
   // if it is. The thumbnail DB may be null when the history one isn't, but not
   // vice-versa.
   std::unique_ptr<HistoryDatabase> db_;
   bool scheduled_kill_db_;  // Database is being killed due to error.
   std::unique_ptr<ThumbnailDatabase> thumbnail_db_;
 
+  // Invoked when an error occurs on the database connection.
+  sql::Connection::ErrorCallback error_callback_;
+
   // Manages expiration between the various databases.
   ExpireHistoryBackend expirer_;
 
   // A commit has been scheduled to occur sometime in the future. We can check
   // non-null-ness to see if there is a commit scheduled in the future, and we
   // can use the pointer to cancel the scheduled commit. There can be only one
   // scheduled commit at a time (see ScheduleCommit).
   scoped_refptr<CommitLaterTask> scheduled_commit_;
 
   // Maps recent redirect destination pages to the chain of redirects that
@@ skipping 35 matching lines @@
   // of inheritance from base::SupportsUserData).
   std::unique_ptr<HistoryBackendHelper> supports_user_data_helper_;
 
   // Used to manage syncing of the typed urls datatype. This will be null before
   // Init is called.
   std::unique_ptr<TypedUrlSyncableService> typed_url_syncable_service_;
 
   // Listens for the system being under memory pressure.
   std::unique_ptr<base::MemoryPressureListener> memory_pressure_listener_;
 
+  // Contains diagnostic information about the sql database that will be filled
+  // when a catastrophic error occurs.
+  sql::DatabaseDiagnosticMap db_diagnostics_;
+
   // Map from host to index in the TopHosts list. It is updated only by
   // TopHosts(), so it's usually stale.
   mutable base::hash_map<std::string, int> host_ranks_;
 
   // List of observers
   base::ObserverList<HistoryBackendObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_BACKEND_H_