Reland: VideoCapture: migrate VideoCapture renderer-->host messages to mojo, part 1

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"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace media {
 class VideoFrame;
@@ skipping 48 matching lines @@
   // Get capturing formats supported by this device.
   // |callback| will be invoked with the results.
   void GetDeviceSupportedFormats(const VideoCaptureDeviceFormatsCB& callback);
 
   // 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.
@@ skipping 49 matching lines @@
                                const gpu::SyncToken& release_sync_token,
                                double consumer_resource_utilization);
 
   void StopDevice();
   void RestartCapture();
   void StartCaptureInternal();
 
   // Helpers.
   bool RemoveClient(int client_id, ClientInfoMap* clients);
 
+  mojom::VideoCaptureHost* GetVideoCaptureHost();
+
   // Called (by an unknown thread) when all consumers are done with a VideoFrame
   // and its ref-count has gone to zero.  This helper function grabs the
   // RESOURCE_UTILIZATION value from the |metadata| and then runs the given
   // callback, to trampoline back to the IO thread with the values.
   static void DidFinishConsumingFrame(
       const media::VideoFrameMetadata* metadata,
       std::unique_ptr<gpu::SyncToken> release_sync_token,
       const BufferFinishedCallback& callback_to_io_thread);
 
   const scoped_refptr<VideoCaptureMessageFilter> message_filter_;
   int device_id_;
   const int session_id_;
 
+  mojom::VideoCaptureHostAssociatedPtr video_capture_host_;
+  mojom::VideoCaptureHost* video_capture_host_for_testing_;
+
   // Vector of callbacks to be notified of device format enumerations, used only
   // on IO Thread.
   std::vector<VideoCaptureDeviceFormatsCB> device_formats_cb_queue_;
   // Vector of callbacks to be notified of a device's in use capture format(s),
   // used only on IO Thread.
   std::vector<VideoCaptureDeviceFormatsCB> device_formats_in_use_cb_queue_;
 
   // Buffers available for sending to the client.
   typedef std::map<int32_t, scoped_refptr<ClientBuffer>> ClientBufferMap;
   ClientBufferMap client_buffers_;
@@ skipping 23 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_