Move content settings extension API to content_settings dir.

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',
@@ skipping 887 matching lines @@
         'browser/content_settings/content_settings_policy_provider.h',
         'browser/content_settings/content_settings_pref_provider.cc',
         'browser/content_settings/content_settings_pref_provider.h',
         'browser/content_settings/content_settings_provider.h',
         'browser/content_settings/content_settings_rule.cc',
         'browser/content_settings/content_settings_rule.h',
         'browser/content_settings/content_settings_utils.cc',
         'browser/content_settings/content_settings_utils.h',
         'browser/content_settings/cookie_settings.cc',
         'browser/content_settings/cookie_settings.h',
+        'browser/content_settings/extension_content_settings_api.cc',
+        'browser/content_settings/extension_content_settings_api.h',
+        'browser/content_settings/extension_content_settings_api_constants.cc',
+        'browser/content_settings/extension_content_settings_api_constants.h',
+        'browser/content_settings/extension_content_settings_helpers.cc',
+        'browser/content_settings/extension_content_settings_helpers.h',
+        'browser/content_settings/extension_content_settings_store.cc',
+        'browser/content_settings/extension_content_settings_store.h',
         'browser/content_settings/host_content_settings_map.cc',
         'browser/content_settings/host_content_settings_map.h',
         'browser/content_settings/local_shared_objects_container.cc',
         'browser/content_settings/local_shared_objects_container.h',
         'browser/content_settings/tab_specific_content_settings.cc',
         'browser/content_settings/tab_specific_content_settings.h',
         'browser/cookies_tree_model.cc',
         'browser/cookies_tree_model.h',
         'browser/crash_upload_list.cc',
         'browser/crash_upload_list.h',
@@ skipping 4101 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/chromeos/gdata/gdata.proto' ],
       'variables': {
         'proto_in_dir': 'browser/chromeos/gdata',
         'proto_out_dir': 'chrome/browser/chromeos/gdata',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }