Add jsoncpp in DEPS and the gyp file to build jsoncpp in chromium.

third_party/devscripts/licensecheck.pl

 #!/usr/bin/perl -w
 # This script was originally based on the script of the same name from
 # the KDE SDK (by dfaure@kde.org)
 #
 # This version is
 #   Copyright (C) 2007, 2008 Adam D. Barratt
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
@@ skipping 509 matching lines @@
         $license = "PSF " . ($1 ? "(v$2) " : '') . $license;
     }
 
     if ($licensetext =~ /The origin of this software must not be misrepresented.*Altered source versions must be plainly marked as such.*This notice may not be removed or altered from any source distribution/ or
         $licensetext =~ /see copyright notice in zlib\.h/) {
         $license = "zlib/libpng $license";
     } elsif ($licensetext =~ /This code is released under the libpng license/) {
         $license = "libpng $license";
     }
 
+    if ($licensetext =~ /under MIT license/) {
+        $license = "MIT license $license";

[Paweł Hajdan Jr., 2011/10/21 06:53:30]

This is good, just please use "MIT/X11 (BSD like)", and please update the patch
in third_party/devscripts.

[Ronghua, 2011/10/21 19:04:06]

Done.

+    }
+
     $license = "UNKNOWN" if (!length($license));
 
     return $license;
 }
 
 sub fatal($) {
     my ($pack,$file,$line);
     ($pack,$file,$line) = caller();
     (my $msg = "$progname: fatal error at line $line:\n@_\n") =~ tr/\0//d;
     $msg =~ s/\n\n$/\n/;
     die $msg;
 }