Refactor lazy_instance to avoid a strict aliasing problem with gcc 4.4.

base/base.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
     },
     'target_conditions': [
@@ skipping 69 matching lines @@
           'float_util.h',
           'foundation_utils_mac.h',
           'global_descriptors_posix.h',
           'global_descriptors_posix.cc',
           'hash_tables.h',
           'histogram.cc',
           'histogram.h',
           'iat_patch.cc',
           'iat_patch.h',
           'id_map.h',
-          'lazy_instance.cc',
           'lazy_instance.h',
           'leak_annotations.h',
           'leak_tracker.h',
           'linked_list.h',
           'linked_ptr.h',
           'lock.cc',
           'lock.h',
           'lock_impl.h',
           'lock_impl_posix.cc',
           'lock_impl_win.cc',
@@ skipping 492 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }