[Android WebView] Rewrite copyrights scanner in Python

android_webview/tools/find_files.pl

Index: android_webview/tools/find_files.pl
diff --git a/android_webview/tools/find_files.pl b/android_webview/tools/find_files.pl
deleted file mode 100755
index 5ad414a20a36224dd4b95bffef01a30b54415dbf..0000000000000000000000000000000000000000
--- a/android_webview/tools/find_files.pl
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/usr/bin/perl -w
-# Copyright 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Use: find_files.pl <start-from> [exclude-dir ...]
-
-use strict;
-use warnings;
-use File::Basename;
-
-my $progname = basename($0);
-
-my $root_dir = shift @ARGV;
-my @find_args = ();
-while (@ARGV) {
-    my $path = shift @ARGV;
-    push @find_args, qw'-not ( -path', "*/$path/*", qw'-prune )'
-}
-push @find_args, qw(-follow -type f -print);
-
-open FIND, '-|', 'find', $root_dir, @find_args
-            or die "$progname: Couldn't exec find: $!\n";
-my $check_regex = '\.(asm|c(c|pp|xx)?|h(h|pp|xx)?|p(l|m)|xs|sh|php|py(|x)' .
-    '|rb|idl|java|el|sc(i|e)|cs|pas|inc|js|pac|html|dtd|xsl|mod|mm?' .
-    '|tex|mli?)$';
-my @files = ();
-while (<FIND>) {
-    chomp;
-    print "$_\n" unless (-z $_ || !m%$check_regex%);
-}
-close FIND;