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

webkit/tools/test_shell/test_shell.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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../../../build/common.gypi',
   ],
   'targets': [
     {
       'target_name': 'test_shell_common',
-      'type': 'static_library',
+      'type': '<(library)',
       'dependencies': [
         '../../../base/base.gyp:base',
         '../../../base/base.gyp:base_gfx',
         '../../../net/net.gyp:net',
         '../../../skia/skia.gyp:skia',
         '../../../testing/gtest.gyp:gtest',
         '../../../third_party/npapi/npapi.gyp:npapi',
         '../../webkit.gyp:glue',
         '../../webkit.gyp:webkit',
       ],
@@ skipping 359 matching lines @@
           ],
           'dependencies': [
             '../../../third_party/npapi/npapi.gyp:npapi',
             '../../webkit.gyp:wtf',
           ],
         },
       ],
     }],
   ],
 }