[NOT FOR REVIEW] Instrument net/ with trace events.

chrome/browser/net/crl_set_fetcher.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/crl_set_fetcher.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/rand_util.h"
@@ skipping 45 matching lines @@
     return;
   SetCRLSetFilePath(path);
   if (!BrowserThread::PostTask(
           BrowserThread::FILE, FROM_HERE,
           base::Bind(&CRLSetFetcher::DoDeleteFromDisk, this))) {
     NOTREACHED();
   }
 }
 
 void CRLSetFetcher::DoInitialLoadFromDisk() {
+  TRACE_EVENT0("CRLSetFetcher", "CRLSetFetcher::DoInitialLoadFromDisk");
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 
   LoadFromDisk(GetCRLSetFilePath(), &crl_set_);
 
   uint32_t sequence_of_loaded_crl = 0;
   if (crl_set_.get())
     sequence_of_loaded_crl = crl_set_->sequence();
 
   // Get updates, advertising the sequence number of the CRL set that we just
   // loaded, if any.
@@ skipping 160 matching lines @@
 bool CRLSetFetcher::GetInstalledFile(
     const std::string& file, base::FilePath* installed_file) {
   return false;
 }
 
 bool CRLSetFetcher::Uninstall() {
   return false;
 }
 
 CRLSetFetcher::~CRLSetFetcher() {}