Improve grammar in some comments.

chrome/service/cloud_print/connector_settings.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/service/cloud_print/connector_settings.h"
 
 #include <stddef.h>
 
 #include "base/metrics/histogram.h"
 #include "base/values.h"
@@ skipping 101 matching lines @@
   xmpp_ping_timeout_sec_ = source.xmpp_ping_timeout_sec();
   printers_ = source.printers_;
   if (source.print_system_settings())
     print_system_settings_.reset(source.print_system_settings()->DeepCopy());
 }
 
 void ConnectorSettings::SetXmppPingTimeoutSec(int timeout) {
   xmpp_ping_timeout_sec_ = timeout;
   if (xmpp_ping_timeout_sec_ < kMinXmppPingTimeoutSecs) {
     LOG(WARNING) <<
-        "CP_CONNECTOR: XMPP ping timeout is less then minimal value";
+        "CP_CONNECTOR: XMPP ping timeout is less than minimal value";
     xmpp_ping_timeout_sec_ = kMinXmppPingTimeoutSecs;
   }
 }
 
 }  // namespace cloud_print