Adding instrumentation to locate the source of jankiness

google_apis/gaia/account_tracker.cc

 // Copyright 2014 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 "google_apis/gaia/account_tracker.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
+#include "base/profiler/scoped_profile.h"
 #include "base/stl_util.h"
 #include "net/url_request/url_request_context_getter.h"
 
 namespace gaia {
 
 AccountTracker::AccountTracker(
     IdentityProvider* identity_provider,
     net::URLRequestContextGetter* request_context_getter)
     : identity_provider_(identity_provider),
       request_context_getter_(request_context_getter),
@@ skipping 58 matching lines @@
     const AccountState& state = it->second;
     if (state.ids.gaia == gaia_id) {
       return state.ids;
     }
   }
 
   return AccountIds();
 }
 
 void AccountTracker::OnRefreshTokenAvailable(const std::string& account_id) {
+  // TODO(vadimt): Remove ScopedProfile below once crbug.com/422460 is fixed.
+  tracked_objects::ScopedProfile tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "422460 AccountTracker::OnRefreshTokenAvailable"));
+
   TRACE_EVENT1("identity",
                "AccountTracker::OnRefreshTokenAvailable",
                "account_key",
                account_id);
 
   // Ignore refresh tokens if there is no active account ID at all.
   if (identity_provider_->GetActiveAccountId().empty())
     return;
 
   DVLOG(1) << "AVAILABLE " << account_id;
@@ skipping 233 matching lines @@
                                "AccountIdFetcher",
                                this,
                                "OnNetworkError",
                                "response_code",
                                response_code);
   LOG(ERROR) << "OnNetworkError " << response_code;
   tracker_->OnUserInfoFetchFailure(this);
 }
 
 }  // namespace gaia