Use string for Histogram names since these are all ASCII anyway wide-characte...

net/base/x509_certificate.cc

 // Copyright (c) 2006-2008 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 "net/base/x509_certificate.h"
 
 #include "base/histogram.h"
 #include "base/logging.h"
 
 namespace net {
@@ skipping 121 matching lines @@
   // Check if we already have this certificate in memory.
   X509Certificate::Cache* cache = X509Certificate::Cache::GetInstance();
   X509Certificate* cached_cert =
       cache->Find(CalculateFingerprint(cert_handle));
   if (cached_cert) {
     DCHECK(cached_cert->source_ != SOURCE_UNUSED);
     if (cached_cert->source_ >= source) {
       // We've found a certificate with the same fingerprint in our cache.  We
       // own the |cert_handle|, which makes it our job to free it.
       FreeOSCertHandle(cert_handle);
-      DHISTOGRAM_COUNTS(L"X509CertificateReuseCount", 1);
+      DHISTOGRAM_COUNTS("X509CertificateReuseCount", 1);
       return cached_cert;
     }
     // Kick out the old certificate from our cache.  The new one is better.
     cache->Remove(cached_cert);
   }
   // Otherwise, allocate a new object.
   return new X509Certificate(cert_handle, source);
 }
 
 // static
@@ skipping 33 matching lines @@
 
 #if defined(OS_LINUX)
 // TODO(port): Implement properly on Linux.
 bool X509Certificate::IsEV(int status) const {
   NOTIMPLEMENTED();
   return true;
 }
 #endif
 
 }  // namespace net
-