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

webkit/blob/webkit_blob.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': 'blob',
       'type': 'static_library',
+      'variables': { 'enable_wexit_time_destructors': 1, },
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base',
         '<(DEPTH)/net/net.gyp:net',
       ],
       'sources': [
         'blob_data.cc',
         'blob_data.h',
         'blob_storage_controller.cc',
         'blob_storage_controller.h',
         'blob_url_request_job.cc',
         'blob_url_request_job.h',
         'blob_url_request_job_factory.cc',
         'blob_url_request_job_factory.h',
         'deletable_file_reference.cc',
         'deletable_file_reference.h',
         'view_blob_internals_job.cc',
         'view_blob_internals_job.h',
       ],
       'conditions': [
         ['inside_chromium_build==0', {
           'dependencies': [
             '<(DEPTH)/webkit/support/setup_third_party.gyp:third_party_headers',
           ],
         }],
       ],
     },
   ],
 }