Implement an initial extension settings API.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 26 matching lines @@
         '../media/media.gyp:media',
         '../net/net.gyp:net',
         '../ppapi/ppapi_internal.gyp:ppapi_proxy',  # For PpapiMsg_LoadPlugin
         '../printing/printing.gyp:printing',
         '../skia/skia.gyp:skia',
         '../third_party/bzip2/bzip2.gyp:bzip2',
         '../third_party/expat/expat.gyp:expat',
         '../third_party/hunspell/hunspell.gyp:hunspell',
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
+        '../third_party/leveldb/leveldb.gyp:leveldb',
         '../third_party/libjingle/libjingle.gyp:libjingle',
         '../third_party/libphonenumber/libphonenumber.gyp:libphonenumber',
         '../third_party/libphonenumber/libphonenumber.gyp:phonenumber_proto',
         '../third_party/libxml/libxml.gyp:libxml',
         '../third_party/npapi/npapi.gyp:npapi',
         '../ui/base/strings/ui_strings.gyp:ui_strings',
         '../ui/gfx/surface/surface.gyp:surface',
         '../webkit/support/webkit_support.gyp:appcache',
         '../webkit/support/webkit_support.gyp:blob',
         '../webkit/support/webkit_support.gyp:database',
@@ skipping 965 matching lines @@
         'browser/extensions/extension_protocols.cc',
         'browser/extensions/extension_protocols.h',
         'browser/extensions/extension_proxy_api.cc',
         'browser/extensions/extension_proxy_api.h',
         'browser/extensions/extension_proxy_api_constants.cc',
         'browser/extensions/extension_proxy_api_constants.h',
         'browser/extensions/extension_proxy_api_helpers.cc',
         'browser/extensions/extension_proxy_api_helpers.h',
         'browser/extensions/extension_rlz_module.cc',
         'browser/extensions/extension_rlz_module.h',
+        'browser/extensions/extension_settings.cc',
+        'browser/extensions/extension_settings.h',
+        'browser/extensions/extension_settings_api.cc',
+        'browser/extensions/extension_settings_api.h',
+        'browser/extensions/extension_settings_noop_storage.cc',
+        'browser/extensions/extension_settings_noop_storage.h',
+        'browser/extensions/extension_settings_storage.h',
+        'browser/extensions/extension_settings_storage_cache.cc',
+        'browser/extensions/extension_settings_storage_cache.h',
+        'browser/extensions/extension_settings_leveldb_storage.cc',
+        'browser/extensions/extension_settings_leveldb_storage.h',
         'browser/extensions/extension_service.cc',
         'browser/extensions/extension_service.h',
         'browser/extensions/extension_sidebar_api.cc',
         'browser/extensions/extension_sidebar_api.h',
         'browser/extensions/extension_special_storage_policy.cc',
         'browser/extensions/extension_special_storage_policy.h',
         'browser/extensions/extension_sync_data.cc',
         'browser/extensions/extension_sync_data.h',
         'browser/extensions/extension_tab_id_map.cc',
         'browser/extensions/extension_tab_id_map.h',
@@ skipping 3625 matching lines @@
       'hard_dependency': 1,
     },
   ],
 }
 
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