Add traces to HttpCache::Transaction to make it easier to follow URLRequests

net/cert/x509_certificate.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 "net/cert/x509_certificate.h"
 
 #include <limits.h>
 #include <stdlib.h>
 
 #include <algorithm>
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/base64.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/singleton.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/pickle.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "base/synchronization/lock.h"
 #include "base/time/time.h"
+#include "base/trace_event/trace_event.h"
 #include "crypto/secure_hash.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/base/url_util.h"
 #include "net/cert/pem_tokenizer.h"
 #include "url/url_canon.h"
 
 namespace net {
 
 namespace {
 
@@ skipping 190 matching lines @@
 scoped_refptr<X509Certificate> X509Certificate::CreateFromHandle(
     OSCertHandle cert_handle,
     const OSCertHandles& intermediates) {
   DCHECK(cert_handle);
   return new X509Certificate(cert_handle, intermediates);
 }
 
 // static
 scoped_refptr<X509Certificate> X509Certificate::CreateFromDERCertChain(
     const std::vector<base::StringPiece>& der_certs) {
+  TRACE_EVENT0("io", "X509Certificate::CreateFromDERCertChain");
+
   // TODO(cbentzel): Remove ScopedTracker below once crbug.com/424386 is fixed.
   tracked_objects::ScopedTracker tracking_profile(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "424386 X509Certificate::CreateFromDERCertChain"));
 
   if (der_certs.empty())
     return NULL;
 
   X509Certificate::OSCertHandles intermediate_ca_certs;
   for (size_t i = 1; i < der_certs.size(); i++) {
@@ skipping 464 matching lines @@
     RemoveFromCache(cert_handle_);
     FreeOSCertHandle(cert_handle_);
   }
   for (size_t i = 0; i < intermediate_ca_certs_.size(); ++i) {
     RemoveFromCache(intermediate_ca_certs_[i]);
     FreeOSCertHandle(intermediate_ca_certs_[i]);
   }
 }
 
 }  // namespace net