Remove some unused cloud print histograms.

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_macros.h"
 #include "base/values.h"
@@ skipping 49 matching lines @@
   DCHECK(server_url_.is_valid());
 
   connect_new_printers_ = prefs->GetBoolean(
       prefs::kCloudPrintConnectNewPrinters, true);
 
   xmpp_ping_enabled_ = prefs->GetBoolean(
       prefs::kCloudPrintXmppPingEnabled, false);
   int timeout = prefs->GetInt(
       prefs::kCloudPrintXmppPingTimeout, kDefaultXmppPingTimeoutSecs);
   SetXmppPingTimeoutSec(timeout);
-  UMA_HISTOGRAM_LONG_TIMES(
-      "CloudPrint.XmppTimeout",
-      base::TimeDelta::FromSeconds(xmpp_ping_timeout_sec_));
 
   const base::ListValue* printers = prefs->GetList(prefs::kCloudPrintPrinters);
   if (printers) {
     for (size_t i = 0; i < printers->GetSize(); ++i) {
       const base::DictionaryValue* dictionary = NULL;
       if (printers->GetDictionary(i, &dictionary) && dictionary) {
         std::string name;
         dictionary->GetString(kName, &name);
         if (!name.empty()) {
           bool connect = connect_new_printers_;
@@ skipping 35 matching lines @@
 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 than minimal value";
     xmpp_ping_timeout_sec_ = kMinXmppPingTimeoutSecs;
   }
 }
 
 }  // namespace cloud_print