Remove many features when building product mode

runtime/vm/json_stream.cc

 // Copyright (c) 2013, 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 "platform/assert.h"
 
 #include "vm/dart_entry.h"
 #include "vm/debugger.h"
 #include "vm/json_stream.h"
 #include "vm/message.h"
 #include "vm/metrics.h"
 #include "vm/object.h"
 #include "vm/service.h"
 #include "vm/service_event.h"
 #include "vm/timeline.h"
 #include "vm/unicode.h"
 
 
 namespace dart {
 
+#ifndef PRODUCT
+
 DECLARE_FLAG(bool, trace_service);
 
 JSONStream::JSONStream(intptr_t buf_size)
     : open_objects_(0),
       buffer_(buf_size),
       default_id_zone_(),
       id_zone_(&default_id_zone_),
       reply_port_(ILLEGAL_PORT),
       seq_(NULL),
       method_(""),
@@ skipping 819 matching lines @@
   va_start(args, format);
   intptr_t len2 = OS::VSNPrint(p, len+1, format, args);
   va_end(args);
   ASSERT(len == len2);
   stream_->buffer_.AddChar('"');
   stream_->AddEscapedUTF8String(p);
   stream_->buffer_.AddChar('"');
   free(p);
 }
 
+#endif  // !PRODUCT
+
 }  // namespace dart