Update uses of UTF conversions in content/ to use the base:: namespace.

content/browser/indexed_db/indexed_db_transaction.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_transaction.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 310 matching lines @@
   // never requests further activity.
   timeout_timer_.Start(
       FROM_HERE,
       base::TimeDelta::FromSeconds(kInactivityTimeoutPeriodSeconds),
       base::Bind(&IndexedDBTransaction::Timeout, this));
 }
 
 void IndexedDBTransaction::Timeout() {
   Abort(IndexedDBDatabaseError(
       blink::WebIDBDatabaseExceptionTimeoutError,
-      ASCIIToUTF16("Transaction timed out due to inactivity.")));
+      base::ASCIIToUTF16("Transaction timed out due to inactivity.")));
 }
 
 void IndexedDBTransaction::CloseOpenCursors() {
   for (std::set<IndexedDBCursor*>::iterator i = open_cursors_.begin();
        i != open_cursors_.end();
        ++i)
     (*i)->Close();
   open_cursors_.clear();
 }
 
 }  // namespace content