Factor out authorization from AudioRendererHost.

content/browser/renderer_host/media/audio_renderer_host.h

Index: content/browser/renderer_host/media/audio_renderer_host.h
diff --git a/content/browser/renderer_host/media/audio_renderer_host.h b/content/browser/renderer_host/media/audio_renderer_host.h
index f1e2d2bf27a713c5e5080d6da485f7042137711c..8088a8eebe94ff7901cbc5e5751d2b4b4620f549 100644
--- a/content/browser/renderer_host/media/audio_renderer_host.h
+++ b/content/browser/renderer_host/media/audio_renderer_host.h
@@ -54,6 +54,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/process/process.h"
 #include "base/sequenced_task_runner_helpers.h"
+#include "content/browser/renderer_host/media/audio_output_authorization_handler.h"
 #include "content/browser/renderer_host/media/media_devices_manager.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_message_filter.h"
@@ -64,6 +65,7 @@
 #include "media/audio/audio_logging.h"
 #include "media/audio/audio_output_controller.h"
 #include "media/audio/simple_sources.h"
+#include "media/base/output_device_info.h"
 #include "url/origin.h"
 
 namespace media {
@@ -76,7 +78,6 @@ namespace content {
 class AudioMirroringManager;
 class MediaInternals;
 class MediaStreamManager;
-class ResourceContext;
 
 class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
  public:
@@ -146,6 +147,12 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
                                     const std::string& device_id,
                                     const url::Origin& security_origin);
 
+  void AuthorizationCompleted(int stream_id,
+                              base::TimeTicks auth_start_time,
+                              media::OutputDeviceStatus status,
+                              media::AudioParameters params,
+                              const std::string& unique_id);
+
   // Creates an audio output stream with the specified format.
   // Upon success/failure, the peer is notified via the NotifyStreamCreated
   // message.
@@ -200,39 +207,6 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
   // ResourceScheduler when the renderer starts or stops playing an audiostream.
   void UpdateNumPlayingStreams(AudioEntry* entry, bool is_playing);
 
-  // Check if the renderer process has access to the requested output device.
-  void CheckOutputDeviceAccess(int render_frame_id,
-                               const std::string& device_id,
-                               const url::Origin& security_origin,
-                               int stream_id,
-                               base::TimeTicks auth_start_time);
-
-  // Proceed with device authorization after checking permissions.
-  void AccessChecked(const std::string& device_id,
-                     const url::Origin& security_origin,
-                     int stream_id,
-                     base::TimeTicks auth_start_time,
-                     bool have_access);
-
-  // Translate the hashed |device_id| to a unique device ID.
-  void TranslateDeviceID(const std::string& device_id,
-                         const url::Origin& security_origin,
-                         int stream_id,
-                         base::TimeTicks auth_start_time,
-                         const MediaDeviceEnumeration& enumeration);
-
-  // Get audio hardware parameters on the device thread.
-  media::AudioParameters GetDeviceParametersOnDeviceThread(
-      const std::string& device_id);
-
-  // Proceed with device authorization after translating device ID and
-  // receiving hardware parameters.
-  void DeviceParametersReceived(int stream_id,
-                                base::TimeTicks auth_start_time,
-                                bool device_found,
-                                const std::string& unique_id,
-                                const media::AudioParameters& output_params);
-
   // Helper method to check if the authorization procedure for stream
   // |stream_id| has started.
   bool IsAuthorizationStarted(int stream_id);
@@ -251,9 +225,6 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
   AudioMirroringManager* const mirroring_manager_;
   std::unique_ptr<media::AudioLog> audio_log_;
 
-  // Used to access to AudioInputDeviceManager.
-  MediaStreamManager* media_stream_manager_;
-
   // A map of stream IDs to audio sources.
   AudioEntryMap audio_entries_;
 
@@ -261,9 +232,6 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
   // thread, but should only be updated from the IO thread.
   base::AtomicRefCount num_playing_streams_;
 
-  // Salt required to translate renderer device IDs to raw device unique IDs
-  std::string salt_;
-
   // Map of device authorizations for streams that are not yet created
   // The key is the stream ID, and the value is a pair. The pair's first element
   // is a bool that is true if the authorization process completes successfully.
@@ -279,6 +247,8 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
   // host. Reported as UMA stat at shutdown.
   size_t max_simultaneous_streams_;
 
+  AudioOutputAuthorizationHandler authorization_handler_;
+
   DISALLOW_COPY_AND_ASSIGN(AudioRendererHost);
 };