Use base::ResetAndReturn() in remoting.

remoting/protocol/fake_stream_socket.cc

Index: remoting/protocol/fake_stream_socket.cc
diff --git a/remoting/protocol/fake_stream_socket.cc b/remoting/protocol/fake_stream_socket.cc
index 678b9f5caacdbf1d5eecc958e8e374b591ed94e4..4d0cb483ee13245c51ee5657a025dfa759da3846 100644
--- a/remoting/protocol/fake_stream_socket.cc
+++ b/remoting/protocol/fake_stream_socket.cc
@@ -5,6 +5,7 @@
 #include "remoting/protocol/fake_stream_socket.h"
 
 #include "base/bind.h"
+#include "base/callback_helpers.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "net/base/address_list.h"
@@ -45,9 +46,7 @@ void FakeStreamSocket::AppendInputData(const std::string& data) {
     input_pos_ += result;
     read_buffer_ = nullptr;
 
-    net::CompletionCallback callback = read_callback_;
-    read_callback_.Reset();
-    callback.Run(result);
+    base::ResetAndReturn(&read_callback_).Run(result);
   }
 }