If user had consented for metrics reporting, send speech input request origin to the server.

chrome/browser/speech/speech_recognition_request.cc

 // Copyright (c) 2011 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/speech/speech_recognition_request.h"
 
 #include <vector>
 
 #include "app/l10n_util.h"
 #include "base/json/json_reader.h"
@@ skipping 105 matching lines @@
     : url_context_(context),
       delegate_(delegate) {
   DCHECK(delegate);
 }
 
 SpeechRecognitionRequest::~SpeechRecognitionRequest() {}
 
 bool SpeechRecognitionRequest::Send(const std::string& language,
                                     const std::string& grammar,
                                     const std::string& hardware_info,
+                                    const std::string& origin_url,
                                     const std::string& content_type,
                                     const std::string& audio_data) {
   DCHECK(!url_fetcher_.get());
 
   std::vector<std::string> parts;
 
   std::string lang_param = language;
   if (lang_param.empty() && url_context_) {
     // If no language is provided then we use the first from the accepted
     // language list. If this list is empty then it defaults to "en-US".
@@ skipping 18 matching lines @@
   parts.push_back("maxresults=3");
 
   GURL url(std::string(kDefaultSpeechRecognitionUrl) + JoinString(parts, '&'));
 
   url_fetcher_.reset(URLFetcher::Create(url_fetcher_id_for_tests,
                                         url,
                                         URLFetcher::POST,
                                         this));
   url_fetcher_->set_upload_data(content_type, audio_data);
   url_fetcher_->set_request_context(url_context_);
+  url_fetcher_->set_referrer(origin_url);
 
   // The speech recognition API does not require user identification as part
   // of requests, so we don't send cookies or auth data for these requests to
   // prevent any accidental connection between users who are logged into the
   // domain for other services (e.g. bookmark sync) with the speech requests.
   url_fetcher_->set_load_flags(
       net::LOAD_DO_NOT_SAVE_COOKIES | net::LOAD_DO_NOT_SEND_COOKIES |
       net::LOAD_DO_NOT_SEND_AUTH_DATA);
   url_fetcher_->Start();
   return true;
@@ skipping 12 matching lines @@
   SpeechInputResultArray result;
   if (!error)
     error = !ParseServerResponse(data, &result);
   url_fetcher_.reset();
 
   DVLOG(1) << "SpeechRecognitionRequest: Invoking delegate with result.";
   delegate_->SetRecognitionResult(error, result);
 }
 
 }  // namespace speech_input