Add LOCAL_ prefix to non-UMA histogram macros.

chrome/browser/net/url_info.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/browser/net/url_info.h"
 
 #include <ctype.h>
 #include <math.h>
 
 #include <algorithm>
@@ skipping 151 matching lines @@
         max_duration, TimeDelta::FromMinutes(15), 100);
   }
   sequence_number_ = sequence_counter++;
   DLogResultsStats("DNS PrefetchFound");
 }
 
 void UrlInfo::SetNoSuchNameState() {
   DCHECK(ASSIGNED == state_);
   state_ = NO_SUCH_NAME;
   resolve_duration_ = GetDuration();
+#ifndef NDEBUG
   if (MaxNonNetworkDnsLookupDuration() <= resolve_duration_) {
-    DHISTOGRAM_TIMES("DNS.PrefetchNotFoundName", resolve_duration_);
+    LOCAL_HISTOGRAM_TIMES("DNS.PrefetchNotFoundName", resolve_duration_);
   }
+#endif
   sequence_number_ = sequence_counter++;
   DLogResultsStats("DNS PrefetchNotFound");
 }
 
 void UrlInfo::SetUrl(const GURL& url) {
   if (url_.is_empty())  // Not yet initialized.
     url_ = url;
   else
     DCHECK_EQ(url_, url);
 }
@@ skipping 174 matching lines @@
 
     case LEARNED_REFERAL_MOTIVATED:
       return RemoveJs(referring_url_.spec());
 
     default:
       return std::string();
   }
 }
 
 }  // namespace chrome_browser_net