Removing instrumentations for task URLFetcherCore::OnCompletedURLRequest

The jank almost disappeared, either because it was fixed, or its numbers were absorbed by other instrumentations.
At the current moment in Win, instrumentation for OAuth2AccessTokenFetcherImpl::OnURLFetchComplete shown 1.65 118ms jph, and remaining own jankiness of URLFetcherCore::OnCompletedURLRequest is 2.87.

BUG=422577
TBR=toyoshim@chromium.org, dconnelly@chromium.org, pkasting@chromium.org, zea@chromium.org, yoz@chromium.org, mmenke@chromium.org, dcheng@chromium.org, mattm@chromium.org, jhawkins@chromium.org, rogerta@chromium.org

Review URL: https://codereview.chromium.org/701463004

Cr-Commit-Position: refs/heads/master@{#302620}

chrome/browser/intranet_redirect_detector.cc

@@ -8,7 +8,6 @@
 #include "base/command_line.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ -95,11 +94,6 @@ void IntranetRedirectDetector::FinishSleep() {
 
 void IntranetRedirectDetector::OnURLFetchComplete(
     const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 IntranetRedirectDetector::OnURLFetchComplete"));
-
   // Delete the fetcher on this function's exit.
   Fetchers::iterator fetcher = fetchers_.find(
       const_cast<net::URLFetcher*>(source));

chrome/browser/safe_browsing/client_side_detection_service.cc

@@ -14,7 +14,6 @@
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/prefs/pref_service.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
@@ -199,11 +198,6 @@ bool ClientSideDetectionService::IsPrivateIPAddress(
 
 void ClientSideDetectionService::OnURLFetchComplete(
     const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 ClientSideDetectionService::OnURLFetchComplete"));
-
   std::string data;
   source->GetResponseAsString(&data);
   if (source == model_fetcher_.get()) {

chrome/browser/safe_browsing/protocol_manager.cc

@@ -8,7 +8,6 @@
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
 #include "base/metrics/histogram.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
@@ -227,11 +226,6 @@ void SafeBrowsingProtocolManager::GetNextUpdate() {
 //              required, the SafeBrowsing servers will tell us to get it again.
 void SafeBrowsingProtocolManager::OnURLFetchComplete(
     const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 SafeBrowsingProtocolManager::OnURLFetchComplete"));
-
   DCHECK(CalledOnValidThread());
   scoped_ptr<const net::URLFetcher> fetcher;
 

components/captive_portal/captive_portal_detector.cc

@@ -5,7 +5,6 @@
 #include "components/captive_portal/captive_portal_detector.h"
 
 #include "base/logging.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
@@ -58,11 +57,6 @@ void CaptivePortalDetector::Cancel() {
 }
 
 void CaptivePortalDetector::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 CaptivePortalDetector::OnURLFetchComplete"));
-
   DCHECK(CalledOnValidThread());
   DCHECK(FetchingURL());
   DCHECK_EQ(url_fetcher_.get(), source);

components/google/core/browser/google_url_tracker.cc

@@ -7,7 +7,6 @@
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_util.h"
 #include "components/google/core/browser/google_pref_names.h"
 #include "components/google/core/browser/google_switches.h"
@@ -107,11 +106,6 @@ void GoogleURLTracker::CancelGoogleURL() {
 }
 
 void GoogleURLTracker::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 GoogleURLTracker::OnURLFetchComplete"));
-
   // Delete the fetcher on this function's exit.
   scoped_ptr<net::URLFetcher> clean_up_fetcher(fetcher_.release());
 

components/invalidation/gcm_network_channel.cc

@@ -5,7 +5,6 @@
 #include "base/base64.h"
 #include "base/i18n/time_formatting.h"
 #include "base/metrics/histogram.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/sha1.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ -224,11 +223,6 @@ void GCMNetworkChannel::OnGetTokenComplete(
 }
 
 void GCMNetworkChannel::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 GCMNetworkChannel::OnURLFetchComplete"));
-
   DCHECK(CalledOnValidThread());
   DCHECK_EQ(fetcher_, source);
   // Free fetcher at the end of function.

components/policy/core/common/cloud/device_management_service.cc

@@ -10,7 +10,6 @@
 #include "base/compiler_specific.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
-#include "base/profiler/scoped_tracker.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
@@ -481,11 +480,6 @@ std::string DeviceManagementService::GetServerUrl() {
 
 void DeviceManagementService::OnURLFetchComplete(
     const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 DeviceManagementService::OnURLFetchComplete"));
-
   JobFetcherMap::iterator entry(pending_jobs_.find(source));
   if (entry == pending_jobs_.end()) {
     NOTREACHED() << "Callback from foreign URL fetcher";

components/translate/core/browser/translate_language_list.cc

@@ -10,7 +10,6 @@
 #include "base/json/json_reader.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
@@ -229,11 +228,6 @@ void TranslateLanguageList::OnLanguageListFetchComplete(
     int id,
     bool success,
     const std::string& data) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateLanguageList::OnLanguageListFetchComplete"));
-
   if (!success) {
     // Since it fails just now, omit to schedule resource requests if
     // ResourceRequestAllowedNotifier think it's ready. Otherwise, a callback
@@ -256,22 +250,12 @@ void TranslateLanguageList::OnLanguageListFetchComplete(
 }
 
 void TranslateLanguageList::NotifyEvent(int line, const std::string& message) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateLanguageList::NotifyEvent"));
-
   TranslateEventDetails details(__FILE__, line, message);
   callback_list_.Notify(details);
 }
 
 void TranslateLanguageList::SetSupportedLanguages(
     const std::string& language_list) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile1(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateLanguageList::SetSupportedLanguages 1"));
-
   // The format is:
   // sl({
   //   "sl": {"XX": "LanguageName", ...},
@@ -295,19 +279,9 @@ void TranslateLanguageList::SetSupportedLanguages(
       kLanguageListCallbackNameLength,
       language_list.size() - kLanguageListCallbackNameLength - 1);
 
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile2(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateLanguageList::SetSupportedLanguages 2"));
-
   scoped_ptr<base::Value> json_value(
       base::JSONReader::Read(languages_json, base::JSON_ALLOW_TRAILING_COMMAS));
 
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile3(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateLanguageList::SetSupportedLanguages 3"));
-
   if (json_value == NULL || !json_value->IsType(base::Value::TYPE_DICTIONARY)) {
     NOTREACHED();
     return;

components/translate/core/browser/translate_script.cc

@@ -118,11 +118,6 @@ void TranslateScript::Request(const RequestCallback& callback) {
 
 void TranslateScript::OnScriptFetchComplete(
     int id, bool success, const std::string& data) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateScript::OnScriptFetchComplete"));
-
   DCHECK_EQ(kFetcherId, id);
 
   scoped_ptr<const TranslateURLFetcher> delete_ptr(fetcher_.release());

components/translate/core/browser/translate_url_fetcher.cc

@@ -4,7 +4,6 @@
 
 #include "components/translate/core/browser/translate_url_fetcher.h"
 
-#include "base/profiler/scoped_tracker.h"
 #include "components/translate/core/browser/translate_download_manager.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
@@ -68,11 +67,6 @@ bool TranslateURLFetcher::Request(
 }
 
 void TranslateURLFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 TranslateURLFetcher::OnURLFetchComplete"));
-
   DCHECK(fetcher_.get() == source);
 
   std::string data;

extensions/browser/updater/extension_downloader.cc

@@ -13,7 +13,6 @@
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ -492,11 +491,6 @@ void ExtensionDownloader::CreateManifestFetcher() {
 }
 
 void ExtensionDownloader::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 ExtensionDownloader::OnURLFetchComplete"));
-
   VLOG(2) << source->GetResponseCode() << " " << source->GetURL();
 
   if (source == manifest_fetcher_.get()) {

google_apis/gaia/gaia_auth_fetcher.cc

@@ -935,11 +935,6 @@ void GaiaAuthFetcher::OnGetCheckConnectionInfoFetched(
 }
 
 void GaiaAuthFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 GaiaAuthFetcher::OnURLFetchComplete"));
-
   fetch_pending_ = false;
   // Some of the GAIA requests perform redirects, which results in the final
   // URL of the fetcher not being the original URL requested.  Therefore use

google_apis/gaia/gaia_oauth_client.cc

@@ -7,7 +7,6 @@
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
 #include "google_apis/gaia/gaia_urls.h"
@@ -227,11 +226,6 @@ void GaiaOAuthClient::Core::MakeGaiaRequest(
 // URLFetcher::Delegate implementation.
 void GaiaOAuthClient::Core::OnURLFetchComplete(
     const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 GaiaOAuthClient::Core::OnURLFetchComplete"));
-
   bool should_retry = false;
   HandleResponse(source, &should_retry);
   if (should_retry) {

google_apis/gaia/oauth2_access_token_fetcher_impl.cc

@@ -11,7 +11,6 @@
 #include "base/json/json_reader.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
@@ -259,11 +258,6 @@ void OAuth2AccessTokenFetcherImpl::OnGetTokenFailure(
 
 void OAuth2AccessTokenFetcherImpl::OnURLFetchComplete(
     const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 OAuth2AccessTokenFetcherImpl::OnURLFetchComplete"));
-
   CHECK(source);
   CHECK(state_ == GET_ACCESS_TOKEN_STARTED);
   EndGetAccessToken(source);

google_apis/gaia/oauth2_api_call_flow.cc

@@ -8,7 +8,6 @@
 #include <vector>
 
 #include "base/basictypes.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/stringprintf.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "net/base/escape.h"
@@ -67,11 +66,6 @@ std::string OAuth2ApiCallFlow::CreateApiCallBodyContentType() {
 }
 
 void OAuth2ApiCallFlow::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 OAuth2ApiCallFlow::OnURLFetchComplete"));
-
   CHECK(source);
   CHECK_EQ(API_CALL_STARTED, state_);
   EndApiCall(source);

sync/internal_api/http_bridge.cc

@@ -5,7 +5,6 @@
 #include "sync/internal_api/public/http_bridge.h"
 
 #include "base/message_loop/message_loop.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
@@ -345,11 +344,6 @@ void HttpBridge::DestroyURLFetcherOnIOThread(net::URLFetcher* fetcher) {
 }
 
 void HttpBridge::OnURLFetchComplete(const net::URLFetcher* source) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/422577 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "422577 HttpBridge::OnURLFetchComplete"));
-
   DCHECK(network_task_runner_->BelongsToCurrentThread());
   base::AutoLock lock(fetch_state_lock_);
   if (fetch_state_.aborted)