[protector] Support for collapsing multiple changes into a single one.

chrome/chrome_browser.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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1781 matching lines @@
         'browser/profiles/profile_shortcut_manager_win.cc',
         'browser/profiles/profile_shortcut_manager_win.h',
         'browser/profiles/refcounted_profile_keyed_service.h',
         'browser/profiles/refcounted_profile_keyed_service.cc',
         'browser/profiles/refcounted_profile_keyed_service_factory.h',
         'browser/profiles/refcounted_profile_keyed_service_factory.cc',
         'browser/protector/base_prefs_change.cc',
         'browser/protector/base_prefs_change.h',
         'browser/protector/base_setting_change.cc',
         'browser/protector/base_setting_change.h',
+        'browser/protector/composite_settings_change.cc',
+        'browser/protector/composite_settings_change.h',
         'browser/protector/default_search_provider_change.cc',
         'browser/protector/histograms.cc',
         'browser/protector/histograms.h',
         'browser/protector/keys.cc',
         'browser/protector/keys.h',
         'browser/protector/prefs_backup_invalid_change.cc',
         'browser/protector/protected_prefs_watcher.cc',
         'browser/protector/protected_prefs_watcher.h',
         'browser/protector/protector_service.cc',
         'browser/protector/protector_service.h',
@@ skipping 3418 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/history/in_memory_url_index_cache.proto' ],
       'variables': {
         'proto_in_dir': 'browser/history',
         'proto_out_dir': 'chrome/browser/history',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }