Adding the message writing class used for remote_security_key STDOUT communication.

remoting/host/setup/test_util.cc

Index: remoting/host/setup/test_util.cc
diff --git a/remoting/host/setup/test_util.cc b/remoting/host/setup/test_util.cc
index ad80af6399ecd65c831bea8f19f2abb695b7023c..efdb58362e0289725651a23113aa3a64a5d8d8ab 100644
--- a/remoting/host/setup/test_util.cc
+++ b/remoting/host/setup/test_util.cc
@@ -15,10 +15,16 @@ namespace remoting {
 
 bool MakePipe(base::File* read_file,
               base::File* write_file) {
+  return MakePipe(read_file, write_file, 0);
+}
+
+bool MakePipe(base::File* read_file,
+              base::File* write_file,
+              unsigned int buffer_size_bytes) {

[Sergey Ulanov, 2016/03/28 18:26:43]

This parameter is windows-specific. I suggest wrapping this function in ifdef,
so that't it's not defined on other platforms. Also my comment about function
overloading applies here as well.

[joedow, 2016/03/29 22:14:14]

Acknowledged.

 #if defined(OS_WIN)
   base::PlatformFile read_handle;
   base::PlatformFile write_handle;
-  if (!CreatePipe(&read_handle, &write_handle, nullptr, 0))
+  if (!CreatePipe(&read_handle, &write_handle, nullptr, buffer_size_bytes))
     return false;
   *read_file = base::File(read_handle);
   *write_file = base::File(write_handle);