Parallelize cpplint in presubmit and fix usage of DISALLOW_* macros.

src/platform-solaris.cc

Index: src/platform-solaris.cc
diff --git a/src/platform-solaris.cc b/src/platform-solaris.cc
index 08bec93964e6a5679762fbcdd8cafb3a0dc016c9..67668e55e50431d398d8f17fae34c3ef0f1dede7 100644
--- a/src/platform-solaris.cc
+++ b/src/platform-solaris.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -759,6 +759,7 @@ class SignalSender : public Thread {
   static bool signal_handler_installed_;
   static struct sigaction old_signal_handler_;
 
+ private:
   DISALLOW_COPY_AND_ASSIGN(SignalSender);
 };