Made IndexedDB's comparators public.

content/browser/indexed_db/indexed_db_backing_store.cc

 // Copyright (c) 2013 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 "content/browser/indexed_db/indexed_db_backing_store.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
-#include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/indexed_db/indexed_db_leveldb_coding.h"
 #include "content/browser/indexed_db/indexed_db_metadata.h"
 #include "content/browser/indexed_db/indexed_db_tracing.h"
 #include "content/browser/indexed_db/indexed_db_value.h"
 #include "content/browser/indexed_db/leveldb/leveldb_comparator.h"
 #include "content/browser/indexed_db/leveldb/leveldb_database.h"
 #include "content/browser/indexed_db/leveldb/leveldb_iterator.h"
 #include "content/browser/indexed_db/leveldb/leveldb_transaction.h"
@@ skipping 184 matching lines @@
 }
 
 static int CompareKeys(const StringPiece& a, const StringPiece& b) {
   return Compare(a, b, false /*index_keys*/);
 }
 
 static int CompareIndexKeys(const StringPiece& a, const StringPiece& b) {
   return Compare(a, b, true /*index_keys*/);
 }
 
-class Comparator : public LevelDBComparator {
- public:
-  virtual int Compare(const StringPiece& a, const StringPiece& b) const
-      OVERRIDE {
-    return content::Compare(a, b, false /*index_keys*/);
-  }
-  virtual const char* Name() const OVERRIDE { return "idb_cmp1"; }
-};
+int IndexedDBBackingStore::Comparator::Compare(const StringPiece& a,
+                                               const StringPiece& b) const {
+  return content::Compare(a, b, false /*index_keys*/);
+}
+
+const char* IndexedDBBackingStore::Comparator::Name() const {
+  return "idb_cmp1";
+}
 
 // 0 - Initial version.
 // 1 - Adds UserIntVersion to DatabaseMetaData.
 // 2 - Adds DataVersion to to global metadata.
 static const int64 kLatestKnownSchemaVersion = 2;
 WARN_UNUSED_RESULT static bool IsSchemaKnown(LevelDBDatabase* db, bool* known) {
   int64 db_schema_version = 0;
   bool found = false;
   leveldb::Status s =
       GetInt(db, SchemaVersionKey::Encode(), &db_schema_version, &found);
@@ skipping 2412 matching lines @@
 }
 
 void IndexedDBBackingStore::Transaction::Rollback() {
   IDB_TRACE("IndexedDBBackingStore::Transaction::Rollback");
   DCHECK(transaction_.get());
   transaction_->Rollback();
   transaction_ = NULL;
 }
 
 }  // namespace content