sync: Finish non-blocking type encryption support

sync/sync.gyp

 # Copyright 2013 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': [
@@ skipping 84 matching lines @@
         'engine/commit_contributor.cc',
         'engine/commit_contributor.h',
         'engine/commit_processor.cc',
         'engine/commit_processor.h',
         'engine/commit_util.cc',
         'engine/commit_util.h',
         'engine/conflict_resolver.cc',
         'engine/conflict_resolver.h',
         'engine/conflict_util.cc',
         'engine/conflict_util.h',
-        'engine/cryptographer_provider.cc',
-        'engine/cryptographer_provider.h',
         'engine/directory_commit_contribution.cc',
         'engine/directory_commit_contribution.h',
         'engine/directory_commit_contributor.cc',
         'engine/directory_commit_contributor.h',
-        'engine/directory_cryptographer_provider.cc',
-        'engine/directory_cryptographer_provider.h',
         'engine/directory_update_handler.cc',
         'engine/directory_update_handler.h',
         'engine/entity_tracker.cc',
         'engine/entity_tracker.h',
         'engine/get_commit_ids.cc',
         'engine/get_commit_ids.h',
         'engine/get_updates_delegate.cc',
         'engine/get_updates_delegate.h',
         'engine/get_updates_processor.cc',
         'engine/get_updates_processor.h',
@@ skipping 383 matching lines @@
         'proto_out_dir': 'sync/protocol',
         'cc_generator_options': 'dllexport_decl=SYNC_PROTO_EXPORT:',
         'cc_include': 'sync/protocol/sync_proto_export.h',
       },
       'includes': [
         '../build/protoc.gypi'
       ],
     },
   ],
 }