Pure pedantry: Replace all ".size() == 0" with ".empty()".

net/base/x509_certificate_mac.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 <CommonCrypto/CommonDigest.h>
 #include <Security/Security.h>
 #include <time.h>
 
@@ skipping 526 matching lines @@
   // CSSM_APPLE_TP_NAME_OIDs.
   std::vector<CSSM_APPLE_TP_NAME_OID> cssm_subject_names;
   for(CSSMOIDStringVector::iterator iter = subject_name_oids.begin();
       iter != subject_name_oids.end(); ++iter) {
     CSSM_APPLE_TP_NAME_OID cssm_subject_name;
     cssm_subject_name.oid = iter->oid_;
     cssm_subject_name.string = iter->string_.c_str();
     cssm_subject_names.push_back(cssm_subject_name);
   }
 
-  if (cssm_subject_names.size() == 0) {
+  if (cssm_subject_names.empty()) {
     DLOG(ERROR) << "cssm_subject_names.size() == 0. Input: " << subject;
     return NULL;
   }
 
   // Set up a certificate request.
   CSSM_APPLE_TP_CERT_REQUEST certReq;
   memset(&certReq, 0, sizeof(certReq));
   certReq.cspHand = base::GetSharedCSPHandle();
   certReq.clHand = base::GetSharedCLHandle();
     // See comment about serial numbers above.
@@ skipping 618 matching lines @@
       CFArrayAppendArray(chain,
                          cert_chain,
                          CFRangeMake(1, chain_count - 1));
     }
   }
 
   return chain.release();
 }
 
 }  // namespace net