webkit: Remove 1 exit time destructor and turn on -Wexit-time-destructors.

webkit/appcache/webkit_appcache.gypi

 # Copyright (c) 2010 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': 'appcache',
+      'variables': { 'enable_wexit_time_destructors': 1, },
       # TODO(dpranke): Uncomment '<(component)',
       # 'type': '<(component)',
       'type': 'static_library',
       'defines': [
         'APPCACHE_IMPLEMENTATION',
       ],
       'dependencies': [
         'quota',
         '<(DEPTH)/base/base.gyp:base_i18n',
         '<(DEPTH)/build/temp_gyp/googleurl.gyp:googleurl',
@@ skipping 56 matching lines @@
       'conditions': [
         ['inside_chromium_build==0', {
           'dependencies': [
             '<(DEPTH)/webkit/support/setup_third_party.gyp:third_party_headers',
           ],
         }],
       ],
     },
   ],
 }