Speed up check_licenses by another 30% by scanning less files.

third_party/devscripts/chromium-1.patch

 --- licensecheck.pl.orig        2011-09-22 10:51:25.934402455 -0700
 +++ licensecheck.pl     2011-09-22 10:45:54.585545044 -0700
+@@ -241,6 +241,12 @@ my @files = ();
+ my @find_args = ();
+ my $files_count = @ARGV;
+ 
++push @find_args, qw(-not ( -path */LayoutTests/* -prune ) );
++push @find_args, qw(-not ( -path */out/Debug/* -prune ) );
++push @find_args, qw(-not ( -path */out/Release/* -prune ) );
++push @find_args, qw(-not ( -path *.git* -prune ) );
++push @find_args, qw(-not ( -path *.svn* -prune ) );
++
+ push @find_args, qw(-maxdepth 1) unless $opt_recursive;
+ push @find_args, qw(-follow -type f -print);
+ 
 @@ -277,10 +277,6 @@
      while (<F>) {
          last if ($. > $opt_lines);
          $content .= $_;
 -       $copyright_match = parse_copyright($_);
 -       if ($copyright_match) {
 -           $copyrights{lc("$copyright_match")} = "$copyright_match";
 -       }
      }
      close(F);
@@ skipping 112 matching lines @@
 -        $license = "WTFPL";
 -    }
 -
 -    if ($licensetext =~ /(License WTFPL|Under (the|a) WTFPL)/i) {
 -        $license = "WTFPL";
 +    } elsif ($licensetext =~ /This code is released under the libpng license/) {
 +        $license = "libpng $license";
      }
  
      $license = "UNKNOWN" if (!length($license));