Hook up EncodedVideoSource on the browser side

media/video/capture/linux/video_capture_device_linux.cc

 // 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.
 
 #include "media/video/capture/linux/video_capture_device_linux.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #if defined(OS_OPENBSD)
 #include <sys/videoio.h>
@@ skipping 155 matching lines @@
   // Check if the thread is running.
   // This means that the device have not been DeAllocated properly.
   DCHECK(!v4l2_thread_.IsRunning());
 
   v4l2_thread_.Stop();
   if (device_fd_ >= 0) {
     close(device_fd_);
   }
 }
 
+VideoEncodingCapability VideoCaptureDeviceLinux::GetEncodingCapability() {
+  return VideoEncodingCapability();
+}
+
+void VideoCaptureDeviceLinux::TryConfigureEncodedBitstream(
+    const RuntimeVideoEncodingParameters& params) {
+}
+
 void VideoCaptureDeviceLinux::Allocate(int width,
                                        int height,
                                        int frame_rate,
                                        EventHandler* observer) {
   if (v4l2_thread_.IsRunning()) {
     return;  // Wrong state.
   }
   v4l2_thread_.Start();
   v4l2_thread_.message_loop()->PostTask(
       FROM_HERE,
@@ skipping 347 matching lines @@
   buffer_pool_size_ = 0;
 }
 
 void VideoCaptureDeviceLinux::SetErrorState(const std::string& reason) {
   DVLOG(1) << reason;
   state_ = kError;
   observer_->OnError();
 }
 
 }  // namespace media