Support needed to measure user and service traffic in Chrome.

components/suggestions/suggestions_service.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 "components/suggestions/suggestions_service.h"
 
 #include <string>
 
 #include "base/location.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 249 matching lines @@
   variations::VariationsHttpHeaderProvider::GetInstance()->AppendHeaders(
       request->GetOriginalURL(), false, false, &headers);
   request->SetExtraRequestHeaders(headers.ToString());
   return request;
 }
 
 void SuggestionsService::OnURLFetchComplete(const net::URLFetcher* source) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK_EQ(pending_request_.get(), source);
 
+  // Before deleting the request we record traffic use of this service

[bengr, 2015/08/07 18:00:01]

// Before deleting the request, record the data user of the service.

[amohammadkhan, 2015/08/11 22:04:36]

Done.

+  pending_request_->ReportYourUsage("Suggestion");
+
   // The fetcher will be deleted when the request is handled.
   scoped_ptr<const net::URLFetcher> request(pending_request_.release());
 
   const net::URLRequestStatus& request_status = request->GetStatus();
   if (request_status.status() != net::URLRequestStatus::SUCCESS) {
     // This represents network errors (i.e. the server did not provide a
     // response).
     UMA_HISTOGRAM_SPARSE_SLOWLY("Suggestions.FailedRequestErrorCode",
                                 -request_status.error());
     DVLOG(1) << "Suggestions server request failed with error: "
@@ skipping 114 matching lines @@
     scheduling_delay_ = TimeDelta::FromSeconds(kDefaultSchedulingDelaySec);
   } else {
     TimeDelta candidate_delay =
         scheduling_delay_ * kSchedulingBackoffMultiplier;
     if (candidate_delay < TimeDelta::FromSeconds(kSchedulingMaxDelaySec))
       scheduling_delay_ = candidate_delay;
   }
 }
 
 }  // namespace suggestions