Adding instrumentation to locate the source of jankiness.

chrome/browser/safe_browsing/client_side_detection_service.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/safe_browsing/client_side_detection_service.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/prefs/pref_service.h"
+#include "base/profiler/scoped_profile.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/safe_browsing/client_model.pb.h"
 #include "chrome/common/safe_browsing/csd.pb.h"
 #include "chrome/common/safe_browsing/safebrowsing_messages.h"
@@ skipping 164 matching lines @@
     VLOG(2) << "Unable to parse IP address: '" << ip_address << "'";
     // Err on the side of safety and assume this might be private.
     return true;
   }
 
   return net::IsIPAddressReserved(ip_number);
 }
 
 void ClientSideDetectionService::OnURLFetchComplete(
     const net::URLFetcher* source) {
+  // TODO(vadimt): Remove ScopedProfile below once crbug.com/422577 is fixed.
+  tracked_objects::ScopedProfile tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "422577 ClientSideDetectionService::OnURLFetchComplete"));
+
   std::string data;
   source->GetResponseAsString(&data);
   if (source == model_fetcher_.get()) {
     HandleModelResponse(
         source, source->GetURL(), source->GetStatus(),
         source->GetResponseCode(), source->GetCookies(), data);
   } else if (client_phishing_reports_.find(source) !=
              client_phishing_reports_.end()) {
     HandlePhishingVerdict(
         source, source->GetURL(), source->GetStatus(),
@@ skipping 424 matching lines @@
 GURL ClientSideDetectionService::GetClientReportUrl(
     const std::string& report_url) {
   GURL url(report_url);
   std::string api_key = google_apis::GetAPIKey();
   if (!api_key.empty())
     url = url.Resolve("?key=" + net::EscapeQueryParamValue(api_key, true));
 
   return url;
 }
 }  // namespace safe_browsing