Add OAuth2 authentication for some voice transcription requests.

chrome/browser/ui/app_list/start_page_service.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_H_
 #define CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_H_
 
 #include <stdint.h>
+#include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
+#include "base/time/default_clock.h"
 #include "chrome/browser/ui/app_list/speech_recognizer_delegate.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/app_list/speech_ui_model_observer.h"
 
 namespace extensions {
 class Extension;
 }
 
 class Profile;
 
 namespace app_list {
 
 class RecommendedApps;
+class SpeechAuthHelper;
 class SpeechRecognizer;
 class StartPageObserver;
 
 // StartPageService collects data to be displayed in app list's start page
 // and hosts the start page contents.
 class StartPageService : public KeyedService,
                          public SpeechRecognizerDelegate {
  public:
   typedef std::vector<scoped_refptr<const extensions::Extension> >
       ExtensionList;
@@ skipping 21 matching lines @@
   RecommendedApps* recommended_apps() { return recommended_apps_.get(); }
   Profile* profile() { return profile_; }
   SpeechRecognitionState state() { return state_; }
 
   // Overridden from app_list::SpeechRecognizerDelegate:
   void OnSpeechResult(const base::string16& query, bool is_final) override;
   void OnSpeechSoundLevelChanged(int16_t level) override;
   void OnSpeechRecognitionStateChanged(
       SpeechRecognitionState new_state) override;
   content::WebContents* GetSpeechContents() override;
+  void GetSpeechAuthParameters(std::string* auth_scope,
+                               std::string* auth_token) override;
 
  protected:
   // Protected for testing.
   explicit StartPageService(Profile* profile);
   ~StartPageService() override;
 
  private:
   friend class StartPageServiceFactory;
 
   // ProfileDestroyObserver to shutdown the service on exiting. WebContents
@@ skipping 23 matching lines @@
   scoped_ptr<ProfileDestroyObserver> profile_destroy_observer_;
   scoped_ptr<RecommendedApps> recommended_apps_;
   SpeechRecognitionState state_;
   ObserverList<StartPageObserver> observers_;
   bool speech_button_toggled_manually_;
   bool speech_result_obtained_;
 
   bool webui_finished_loading_;
   std::vector<base::Closure> pending_webui_callbacks_;
 
+  base::DefaultClock clock_;
   scoped_ptr<SpeechRecognizer> speech_recognizer_;
+  scoped_ptr<SpeechAuthHelper> speech_auth_helper_;
 
 #if defined(OS_CHROMEOS)
   scoped_ptr<AudioStatus> audio_status_;
 #endif
 
   base::WeakPtrFactory<StartPageService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(StartPageService);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_H_