Use IpcVideoFrameCapturer on network thread instead of capturer thread.

remoting/test/protocol_perftest.cc

Index: remoting/test/protocol_perftest.cc
diff --git a/remoting/test/protocol_perftest.cc b/remoting/test/protocol_perftest.cc
index 3695b75b2bca63106a7b05ca3a21cd5bf766c7f5..96d4cab5c8fc6fefd7bf2cfa666175a59d162a05 100644
--- a/remoting/test/protocol_perftest.cc
+++ b/remoting/test/protocol_perftest.cc
@@ -330,9 +330,7 @@ class ProtocolPerfTest
     host_.reset(new ChromotingHost(
         &desktop_environment_factory_, std::move(session_manager),
         transport_context, host_thread_.task_runner(),
-        host_thread_.task_runner(), capture_thread_.task_runner(),
-        encode_thread_.task_runner(), host_thread_.task_runner(),
-        host_thread_.task_runner()));
+        encode_thread_.task_runner()));
 
     base::FilePath certs_dir(net::GetTestCertsDirectory());