Add OAuth2 authentication for some voice transcription requests.

chrome/browser/ui/app_list/speech_recognizer.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 "chrome/browser/ui/app_list/speech_recognizer.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/strings/string16.h"
@@ skipping 25 matching lines @@
 // SpeechRecognizerDelegate via a weak pointer that is only ever referenced from
 // the UI thread.
 class SpeechRecognizer::EventListener
     : public base::RefCountedThreadSafe<SpeechRecognizer::EventListener>,
       public content::SpeechRecognitionEventListener {
  public:
   EventListener(const base::WeakPtr<SpeechRecognizerDelegate>& delegate,
                 net::URLRequestContextGetter* url_request_context_getter,
                 const std::string& locale);
 
-  void StartOnIOThread(int render_process_id);
+  void StartOnIOThread(int render_process_id,
+                       const std::string& auth_scope,
+                       const std::string& auth_token);
   void StopOnIOThread();
 
  private:
   friend class base::RefCountedThreadSafe<SpeechRecognizer::EventListener>;
   ~EventListener();
 
   void NotifyRecognitionStateChanged(SpeechRecognitionState new_state);
 
   void StartSpeechTimeout();
   void StopSpeechTimeout();
@@ skipping 40 matching lines @@
       speech_timeout_(false, false),
       session_(kInvalidSessionId),
       weak_factory_(this) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 }
 
 SpeechRecognizer::EventListener::~EventListener() {
   DCHECK(!speech_timeout_.IsRunning());
 }
 
-void SpeechRecognizer::EventListener::StartOnIOThread(int render_process_id) {
+void SpeechRecognizer::EventListener::StartOnIOThread(
+    int render_process_id,
+    const std::string& auth_scope,
+    const std::string& auth_token) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   if (session_ != kInvalidSessionId)
     StopOnIOThread();
 
   content::SpeechRecognitionSessionConfig config;
   config.language = locale_;
   config.is_legacy_api = false;
   config.continuous = true;
   config.interim_results = true;
   config.max_hypotheses = 1;
   config.filter_profanities = true;
   config.url_request_context_getter = url_request_context_getter_;
   config.event_listener = weak_factory_.GetWeakPtr();
   config.initial_context.render_process_id = render_process_id;
+  config.auth_scope = auth_scope;
+  config.auth_token = auth_token;
 
   auto speech_instance = content::SpeechRecognitionManager::GetInstance();
   session_ = speech_instance->CreateSession(config);
   speech_instance->StartSession(session_);
 }
 
 void SpeechRecognizer::EventListener::StopOnIOThread() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   if (session_ == kInvalidSessionId)
     return;
@@ skipping 112 matching lines @@
 
 void SpeechRecognizer::EventListener::OnAudioEnd(int session_id) {
 }
 
 SpeechRecognizer::SpeechRecognizer(
     const base::WeakPtr<SpeechRecognizerDelegate>& delegate,
     net::URLRequestContextGetter* url_request_context_getter,
     const std::string& locale)
     : delegate_(delegate),
       speech_event_listener_(new EventListener(
-          delegate, url_request_context_getter, locale)){
+          delegate, url_request_context_getter, locale)) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 }
 
 SpeechRecognizer::~SpeechRecognizer() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   Stop();
 }
 
 void SpeechRecognizer::Start() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   // The speech recognizer checks to see if the request is allowed by looking
   // up the renderer process. A renderer containing the app-list is hard-coded
   // to be allowed.
   if (!delegate_)
     return;
   content::WebContents* contents = delegate_->GetSpeechContents();
   if (!contents)
     return;
 
+  std::string auth_scope;
+  std::string auth_token;
+  delegate_->GetSpeechAuthParameters(&auth_scope, &auth_token);
+
   content::BrowserThread::PostTask(
       content::BrowserThread::IO,
       FROM_HERE,
       base::Bind(&SpeechRecognizer::EventListener::StartOnIOThread,
                  speech_event_listener_,
-                 contents->GetRenderProcessHost()->GetID()));
+                 contents->GetRenderProcessHost()->GetID(),
+                 auth_scope,
+                 auth_token));
 }
 
 void SpeechRecognizer::Stop() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   content::BrowserThread::PostTask(
       content::BrowserThread::IO,
       FROM_HERE,
       base::Bind(&SpeechRecognizer::EventListener::StopOnIOThread,
                  speech_event_listener_));
 }
 
 }  // namespace app_list