Add OAuth2 authentication for some voice transcription requests.

content/browser/speech/google_streaming_remote_engine.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 "content/browser/speech/google_streaming_remote_engine.h"
 
+#include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "content/browser/speech/audio_buffer.h"
 #include "content/browser/speech/proto/google_streaming_api.pb.h"
@@ skipping 318 matching lines @@
   }
   upstream_args.push_back("client=chromium");
   if (!config_.hardware_info.empty()) {
     upstream_args.push_back(
         "xhw=" + net::EscapeQueryParamValue(config_.hardware_info, true));
   }
   if (config_.continuous)
     upstream_args.push_back("continuous");
   if (config_.interim_results)
     upstream_args.push_back("interim");
-
+  if (!config_.auth_token.empty() && !config_.auth_scope.empty()) {
+    upstream_args.push_back(
+        "authScope=" + net::EscapeQueryParamValue(config_.auth_scope, true));
+    upstream_args.push_back(
+        "authToken=" + net::EscapeQueryParamValue(config_.auth_token, true));
+  }
   GURL upstream_url(std::string(kWebServiceBaseUrl) +
                     std::string(kUpstreamUrl) +
                     JoinString(upstream_args, '&'));
 
   upstream_fetcher_.reset(URLFetcher::Create(
       kUpstreamUrlFetcherIdForTesting, upstream_url, URLFetcher::POST, this));
   upstream_fetcher_->SetChunkedUpload(encoder_->mime_type());
   upstream_fetcher_->SetRequestContext(url_context_.get());
   upstream_fetcher_->SetReferrer(config_.origin_url);
   upstream_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES |
@@ skipping 215 matching lines @@
 }
 
 GoogleStreamingRemoteEngine::FSMEventArgs::FSMEventArgs(FSMEvent event_value)
     : event(event_value) {
 }
 
 GoogleStreamingRemoteEngine::FSMEventArgs::~FSMEventArgs() {
 }
 
 }  // namespace content