Migrate MediaDevices.enumerateDevices to Mojo

content/renderer/media/user_media_client_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_USER_MEDIA_CLIENT_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_USER_MEDIA_CLIENT_IMPL_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/common/content_export.h"
+#include "content/common/media/media_devices.h"
+#include "content/common/media/media_devices.mojom.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
 #include "content/renderer/media/media_stream_source.h"
+#include "services/shell/public/cpp/interface_provider.h"
 #include "third_party/WebKit/public/platform/WebMediaStream.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
 #include "third_party/WebKit/public/platform/WebSourceInfo.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "third_party/WebKit/public/web/WebMediaDeviceChangeObserver.h"
 #include "third_party/WebKit/public/web/WebMediaDevicesRequest.h"
 #include "third_party/WebKit/public/web/WebUserMediaClient.h"
 #include "third_party/WebKit/public/web/WebUserMediaRequest.h"
 
 namespace content {
@@ skipping 151 matching lines @@
  protected:
   // These methods can be accessed in unit tests.
   UserMediaRequestInfo* FindUserMediaRequestInfo(int request_id);
   UserMediaRequestInfo* FindUserMediaRequestInfo(
       const blink::WebUserMediaRequest& request);
 
   void DeleteUserMediaRequestInfo(UserMediaRequestInfo* request);
 
  private:
   typedef std::vector<blink::WebMediaStreamSource> LocalStreamSources;
-  struct MediaDevicesRequestInfo;
-  typedef ScopedVector<MediaDevicesRequestInfo> MediaDevicesRequests;
 
   // RenderFrameObserver implementation.
   void OnDestruct() override;
 
   // Creates a WebKit representation of stream sources based on
   // |devices| from the MediaStreamDispatcher.
   void InitializeSourceObject(
       const StreamDeviceInfo& device,
       blink::WebMediaStreamSource::Type type,
       const blink::WebMediaConstraints& constraints,
@@ skipping 15 matching lines @@
   // underlying media sources and tracks have been created and started.
   void OnCreateNativeTracksCompleted(
       UserMediaRequestInfo* request,
       MediaStreamRequestResult result,
       const blink::WebString& result_name);
 
   void OnStreamGeneratedForCancelledRequest(
       const StreamDeviceInfoArray& audio_array,
       const StreamDeviceInfoArray& video_array);
 
-  void FinalizeEnumerateDevices(MediaDevicesRequestInfo* request);
-  void FinalizeEnumerateSources(MediaDevicesRequestInfo* request);
+  using EnumerationResult = std::vector<std::vector<MediaDeviceInfo>>;
+  void FinalizeEnumerateDevices(blink::WebMediaDevicesRequest request,
+                                const EnumerationResult& result);
+  void FinalizeGetSources(blink::WebMediaStreamTrackSourcesRequest request,
+                          const EnumerationResult& result);
 
   void DeleteAllUserMediaRequests();
 
-  MediaDevicesRequestInfo* FindMediaDevicesRequestInfo(int request_id);
-  MediaDevicesRequestInfo* FindMediaDevicesRequestInfo(
-      const blink::WebMediaDevicesRequest& request);
-  void CancelAndDeleteMediaDevicesRequest(MediaDevicesRequestInfo* request);
-
   // Returns the source that use a device with |device.session_id|
   // and |device.device.id|. NULL if such source doesn't exist.
   const blink::WebMediaStreamSource* FindLocalSource(
       const StreamDeviceInfo& device) const;
 
   // Returns true if we do find and remove the |source|.
   // Otherwise returns false.
   bool RemoveLocalSource(const blink::WebMediaStreamSource& source);
 
   void StopLocalSource(const blink::WebMediaStreamSource& source,
                        bool notify_dispatcher);
 
+  const ::mojom::MediaDevicesDispatcherHostPtr& GetMediaDevicesDispatcher();
+
   // Weak ref to a PeerConnectionDependencyFactory, owned by the RenderThread.
   // It's valid for the lifetime of RenderThread.
   // TODO(xians): Remove this dependency once audio do not need it for local
   // audio.
   PeerConnectionDependencyFactory* const dependency_factory_;
 
   // UserMediaClientImpl owns MediaStreamDispatcher instead of RenderFrameImpl
   // (or RenderFrameObserver) to ensure tear-down occurs in the right order.
   const std::unique_ptr<MediaStreamDispatcher> media_stream_dispatcher_;
 
+  ::mojom::MediaDevicesDispatcherHostPtr media_devices_dispatcher_;
+
   LocalStreamSources local_sources_;
 
   UserMediaRequests user_media_requests_;
 
-  // Requests to enumerate media devices.
-  MediaDevicesRequests media_devices_requests_;
-
   blink::WebMediaDeviceChangeObserver media_device_change_observer_;
 
   // Note: This member must be the last to ensure all outstanding weak pointers
   // are invalidated first.
   base::WeakPtrFactory<UserMediaClientImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UserMediaClientImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_USER_MEDIA_CLIENT_IMPL_H_