Histogram versions and extended error codes for SQLite databases.

chrome/browser/history/thumbnail_database.cc

 // 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.
 
 #include "chrome/browser/history/thumbnail_database.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 200 matching lines @@
 
     db_.RazeAndClose();
     return sql::INIT_FAILURE;
   }
 
   return sql::INIT_OK;
 }
 
 sql::InitStatus ThumbnailDatabase::OpenDatabase(sql::Connection* db,
                                                 const base::FilePath& db_name) {
-  db->set_error_histogram_name("Sqlite.Thumbnail.Error");
+  db->set_histogram_tag("Thumbnail");
 
   // Thumbnails db now only stores favicons, so we don't need that big a page
   // size or cache.
   db->set_page_size(2048);
   db->set_cache_size(32);
 
   // Run the database in exclusive mode. Nobody else should be accessing the
   // database while we're running, and this will give somewhat improved perf.
   db->set_exclusive_locking();
 
@@ skipping 932 matching lines @@
     }
     parsing_errors |= !base::StringToInt(t.token(), &height);
     favicon_sizes->push_back(gfx::Size(width, height));
   }
 
   if (parsing_errors)
     favicon_sizes->clear();
 }
 
 }  // namespace history