Basic underpinnings of the gyp equivalent of the Linux SHARED=1 build:...

webkit/default_plugin/default_plugin.gyp

 # Copyright (c) 2009 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.
 
 {
   'includes': [
     '../../build/common.gypi',
   ],
   'targets': [
   ],
   'conditions': [
     ['OS=="win"', {
       'targets': [
         {
           'target_name': 'default_plugin',
-          'type': 'static_library',
+          'type': '<(library)',
           'dependencies': [
             '../../third_party/libxml/libxml.gyp:libxml',
             '../../third_party/icu38/icu38.gyp:icui18n',
             '../../third_party/icu38/icu38.gyp:icuuc',
             '../../third_party/npapi/npapi.gyp:npapi',
             '../webkit.gyp:webkit_resources',
             '../../net/net.gyp:net_resources',
           ],
           'include_dirs': [
             '../..',
@@ skipping 19 matching lines @@
             'plugin_main.h',
           ],
           'link_settings': {
             'libraries': ['-lUrlmon.lib'],
           },
         },
       ],
     },],
   ],
 }