Suppress "Waiting for debugger..." message on cosole

runtime/bin/dbg_connection.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/dbg_connection.h"
 #include "bin/dartutils.h"
 #include "bin/socket.h"
 #include "bin/thread.h"
 #include "bin/utils.h"
 
@@ skipping 936 matching lines @@
       HandleUnknownMsg(msgbuf_->buf());
       msgbuf_->PopMessage();
     }
   }
 }
 
 
 void DebuggerConnectionHandler::WaitForConnection() {
   MonitorLocker ml(&is_connected_);
   while (!IsConnected()) {
-    printf("Waiting for debugger connection...\n");
     dart::Monitor::WaitResult res = ml.Wait(dart::Monitor::kNoTimeout);
     ASSERT(res == dart::Monitor::kNotified);
   }
 }
 
 
 void DebuggerConnectionHandler::SendBreakpointEvent(Dart_StackTrace trace) {
   dart::TextBuffer msg(128);
   msg.Printf("{ \"event\": \"paused\", \"params\": { ");
   msg.Printf("\"reason\": \"breakpoint\", ");
@@ skipping 99 matching lines @@
   DebuggerConnectionImpl::StartHandler(port_number);
   Dart_SetBreakpointHandler(BreakpointHandler);
   Dart_SetBreakpointResolvedHandler(BptResolvedHandler);
   Dart_SetExceptionThrownHandler(ExceptionThrownHandler);
 }
 
 
 DebuggerConnectionHandler::~DebuggerConnectionHandler() {
   CloseDbgConnection();
 }