checklicenses: remove libwebp from path whitelist

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
 #   Copyright (C) 2012 Francesco Poli
 #
 # 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
@@ skipping 455 matching lines @@
         $licensetext =~ /THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- ITY/) {
         if ($licensetext =~ /All advertising materials mentioning features or use of this software must display the following/) {
             $license = "BSD (4 clause) $license";
         } elsif ($licensetext =~ /be used to endorse or promote products derived from this software/) {
             $license = "BSD (3 clause) $license";
         } elsif ($licensetext =~ /Redistributions of source code must retain the above copyright notice/) {
             $license = "BSD (2 clause) $license";
         } else {
             $license = "BSD $license";
         }
+    } elsif ($licensetext =~ /This code is licensed under the same terms as WebM/) {
+        $license = "BSD (3 clause) $license";
     } elsif ($licensetext =~ /Use of this source code is governed by a BSD-style license/) {
         $license = "BSD-like $license";
     } elsif ($licensetext =~ /BSD terms apply/) {
         $license = "BSD-like $license";
     } elsif ($licensetext =~ /subject to the BSD License/) {
         # TODO(sbc): remove this case once we fix: http://crbug.com/177268
         $license = "BSD-like $license";
     } elsif ($licensetext =~ /GOVERNED BY A BSD-STYLE SOURCE LICENSE/) {
         $license = "BSD-like $license";
     }
@@ skipping 99 matching lines @@
     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;
 }