VideoCapture: more migration IPC-->mojo, part 6

content/renderer/media/video_capture_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_VIDEO_CAPTURE_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <map>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "content/common/content_export.h"
 #include "content/common/media/video_capture.h"
 #include "content/common/video_capture.mojom.h"
 #include "content/public/renderer/media_stream_video_sink.h"
 #include "content/renderer/media/video_capture_message_filter.h"
 #include "media/base/video_capture_types.h"
+#include "media/base/video_frame.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
-namespace media {
-class VideoFrame;
-}  // namespace media
-
 namespace content {
 
 // VideoCaptureImpl represents a capture device in renderer process. It provides
 // interfaces for clients to Start/Stop capture. It also communicates to clients
 // when buffer is ready, state of capture device is changed.
-
-// VideoCaptureImpl is also a delegate of VideoCaptureMessageFilter which relays
-// operation of a capture device to the browser process and receives responses
-// from browser process.
+//
+// VideoCaptureImpl is also a delegate of VideoCaptureMessageFilter to receive
+// notification of the browser process being ready to communicate.
 //
 // VideoCaptureImpl is an IO thread only object. See the comments in
 // video_capture_impl_manager.cc for the lifetime of this object.
 // All methods must be called on the IO thread.
 //
 // This is an internal class used by VideoCaptureImplManager only. Do not access
 // this directly.
 class CONTENT_EXPORT VideoCaptureImpl
     : public VideoCaptureMessageFilter::Delegate,
       public mojom::VideoCaptureObserver {
@@ skipping 31 matching lines @@
   // Get capturing formats currently in use by this device.
   // |callback| will be invoked with the results.
   void GetDeviceFormatsInUse(const VideoCaptureDeviceFormatsCB& callback);
 
   media::VideoCaptureSessionId session_id() const { return session_id_; }
 
   void SetVideoCaptureHostForTesting(mojom::VideoCaptureHost* service) {
     video_capture_host_for_testing_ = service;
   }
 
- protected:
-  // Note: Overridden only by unit test subclasses.
-  virtual void Send(IPC::Message* message);
-
  private:
   friend class VideoCaptureImplTest;
   friend class MockVideoCaptureImpl;
 
   // Carries a shared memory for transferring video frames from browser to
   // renderer.
   class ClientBuffer;
 
   // Contains information for a video capture client. Including parameters
   // for capturing and callbacks to the client.
   struct ClientInfo {
     ClientInfo();
     ClientInfo(const ClientInfo& other);
     ~ClientInfo();
     media::VideoCaptureParams params;
     VideoCaptureStateUpdateCB state_update_cb;
     VideoCaptureDeliverFrameCB deliver_frame_cb;
   };
   using ClientInfoMap = std::map<int, ClientInfo>;
 
   using BufferFinishedCallback =
       base::Callback<void(const gpu::SyncToken& sync_token,
                           double consumer_resource_utilization)>;
 
   // VideoCaptureMessageFilter::Delegate interface implementation.
-  void OnBufferCreated(base::SharedMemoryHandle handle,
-                       int length,
-                       int buffer_id) override;
   void OnDelegateAdded(int32_t device_id) override;
 
   // mojom::VideoCaptureObserver implementation.
   void OnStateChanged(mojom::VideoCaptureState state) override;
+  void OnBufferCreated(int32_t buffer_id,
+                       mojo::ScopedSharedBufferHandle handle) override;
   void OnBufferReady(int32_t buffer_id, mojom::VideoFrameInfoPtr info) override;
   void OnBufferDestroyed(int32_t buffer_id) override;
 
   // Sends an IPC message to browser process when all clients are done with the
   // buffer.
   void OnClientBufferFinished(int buffer_id,
                               const scoped_refptr<ClientBuffer>& buffer,
                               const gpu::SyncToken& release_sync_token,
                               double consumer_resource_utilization);
 
@@ skipping 57 matching lines @@
   // in |client_buffers_|.
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<VideoCaptureImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_