Fix license headers in a number of files

chrome/renderer/net/predictor_queue.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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.
 
 // See header file for description of DnsQueue class
 
 #include "chrome/renderer/net/predictor_queue.h"
 
 #include "base/logging.h"
 #include "base/metrics/stats_counters.h"
 
@@ skipping 131 matching lines @@
 }
 
 bool DnsQueue::Validate() {
   return (readable_ >= 0) &&
           readable_ < buffer_sentinel_ &&
           writeable_ >= 0 &&
           writeable_ < buffer_sentinel_ &&
           '\0' == buffer_[buffer_sentinel_] &&
           ((0 == size_) == (readable_ == writeable_));
 }