Linux: add an option to use system minizip.

chrome/chrome_common.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'common',
       'type': 'static_library',
       'variables': {
@@ skipping 35 matching lines @@
         '<(DEPTH)/skia/skia.gyp:skia',
         '<(DEPTH)/third_party/adobe/flash/flash_player.gyp:flapper_version_h',
         '<(DEPTH)/third_party/bzip2/bzip2.gyp:bzip2',
         '<(DEPTH)/third_party/icu/icu.gyp:icui18n',
         '<(DEPTH)/third_party/icu/icu.gyp:icuuc',
         '<(DEPTH)/third_party/libxml/libxml.gyp:libxml',
         '<(DEPTH)/third_party/mt19937ar/mt19937ar.gyp:mt19937ar',
         '<(DEPTH)/third_party/re2/re2.gyp:re2',
         '<(DEPTH)/third_party/sqlite/sqlite.gyp:sqlite',
         '<(DEPTH)/third_party/widevine/cdm/widevine_cdm.gyp:widevine_cdm_version_h',
+        '<(DEPTH)/third_party/zlib/zlib.gyp:minizip',
         '<(DEPTH)/third_party/zlib/zlib.gyp:zlib',
         '<(DEPTH)/ui/ui.gyp:ui_resources',
         '<(DEPTH)/webkit/support/webkit_support.gyp:glue',
         '<(DEPTH)/webkit/support/webkit_support.gyp:user_agent',
       ],
       'sources': [
         'common/all_messages.h',
         'common/attrition_experiments.h',
         'common/auto_start_linux.cc',
         'common/auto_start_linux.h',
@@ skipping 474 matching lines @@
         'common/metrics/proto/user_action_event.proto',
       ],
       'variables': {
         'proto_in_dir': 'common/metrics/proto',
         'proto_out_dir': 'chrome/common/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }