Histogram versions and extended error codes for SQLite databases.

chrome/browser/history/text_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 <limits>
 #include <set>
 #include <string>
 
 #include "chrome/browser/history/text_database.h"
 
@@ skipping 114 matching lines @@
   return year * 100 + month;
 }
 
 bool TextDatabase::Init() {
   // Make sure, if we're not allowed to create the file, that it exists.
   if (!allow_create_) {
     if (!file_util::PathExists(file_name_))
       return false;
   }
 
-  db_.set_error_histogram_name("Sqlite.Text.Error");
+  db_.set_histogram_tag("Text");
 
   // Set the database page size to something a little larger to give us
   // better performance (we're typically seek rather than bandwidth limited).
   // This only has an effect before any tables have been created, otherwise
   // this is a NOP. Must be a power of 2 and a max of 8192.
   db_.set_page_size(4096);
 
   // The default cache size is 2000 which give >8MB of data. Since we will often
   // have 2-3 of these objects, each with their own 8MB, this adds up very fast.
   // We therefore reduce the size so when there are multiple objects, we're not
@@ skipping 199 matching lines @@
 
     // Compute the snippet based on those matches.
     std::string body = statement.ColumnString(4);
     match.snippet.ComputeSnippet(match_positions, body);
   }
   statement.Reset(true);
   return result_count > options.EffectiveMaxCount();
 }
 
 }  // namespace history