Make SharedMemoryHandle a class on windows.

base/base.gypi

 # Copyright (c) 2012 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': [
     'trace_event/trace_event.gypi',
   ],
   'target_defaults': {
     'variables': {
@@ skipping 343 matching lines @@
           'memory/ref_counted_delete_on_message_loop.h',
           'memory/ref_counted_memory.cc',
           'memory/ref_counted_memory.h',
           'memory/scoped_policy.h',
           'memory/scoped_ptr.h',
           'memory/scoped_vector.h',
           'memory/shared_memory.h',
           'memory/shared_memory_android.cc',
           'memory/shared_memory_handle.h',
           'memory/shared_memory_handle_mac.cc',
+          'memory/shared_memory_handle_win.cc',
           'memory/shared_memory_mac.cc',
           'memory/shared_memory_nacl.cc',
           'memory/shared_memory_posix.cc',
           'memory/shared_memory_win.cc',
           'memory/singleton.cc',
           'memory/singleton.h',
           'memory/weak_ptr.cc',
           'memory/weak_ptr.h',
           'message_loop/incoming_task_queue.cc',
           'message_loop/incoming_task_queue.h',
@@ skipping 668 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }