Linux: add an option to use system minizip.

chrome/common/zip.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/common/zip.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "chrome/common/zip_internal.h"
 #include "chrome/common/zip_reader.h"
 #include "net/base/file_stream.h"
+
+#if defined(USE_SYSTEM_MINIZIP)
+#include <minizip/unzip.h>
+#include <minizip/zip.h>
+#else
 #include "third_party/zlib/contrib/minizip/unzip.h"
 #include "third_party/zlib/contrib/minizip/zip.h"
+#endif
 
 namespace {
 
 bool AddFileToZip(zipFile zip_file, const FilePath& src_dir) {
   net::FileStream stream(NULL);
   int flags = base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ;
   if (stream.OpenSync(src_dir, flags) != 0) {
     DLOG(ERROR) << "Could not open stream for path "
                 << src_dir.value();
     return false;
@@ skipping 131 matching lines @@
   if (include_hidden_files) {
     return ZipWithFilterCallback(
         src_dir, dest_file, base::Bind(&ExcludeNoFilesFilter));
   } else {
     return ZipWithFilterCallback(
         src_dir, dest_file, base::Bind(&ExcludeHiddenFilesFilter));
   }
 }
 
 }  // namespace zip