Changes in app.window and app.runtime to support lock screen note taking

extensions/common/api/_api_features.json

 // Copyright 2014 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.
 
 // This features file defines extension APIs implemented under src/extensions.
 // See chrome/common/extensions/api/_features.md to understand this file, as
 // well as feature.h, simple_feature.h, and feature_provider.h.
 //
 // Note that specifying "web_page", "blessed_web_page", or "all" as a context
 // type will require manually updating chrome/renderer/resources/dispatcher.cc.
 
 {
   "alarms": {
     "dependencies": ["permission:alarms"],
     "contexts": ["blessed_extension"]
   },
   "app.runtime": [{
     "channel": "stable",
-    "contexts": ["blessed_extension"],
+    "contexts": ["blessed_extension", "lock_screen_extension"],
     "extension_types": ["platform_app"],
     "noparent": true
   }, {
     "channel": "stable",
     "component_extensions_auto_granted": false,
     "contexts": ["blessed_extension"],
     "extension_types": ["extension"],
     "noparent": true,
     "whitelist": [
       "2FC374607C2DF285634B67C64A2E356C607091C3",  // Quickoffice
       "3727DD3E564B6055387425027AD74C58784ACC15",  // Quickoffice internal
       "12E618C3C6E97495AAECF2AC12DEB082353241C6"   // QO component extension
     ]
   }],
   "app.window": [{
     "channel": "stable",
-    "contexts": ["blessed_extension"],
+    "contexts": ["blessed_extension", "lock_screen_extension"],
     "extension_types": ["platform_app"],
     "noparent": true
   }, {
     "channel": "stable",
     "contexts": ["blessed_extension"],
     "extension_types": ["extension"],
     "noparent": true,
     "component_extensions_auto_granted": false,
     "whitelist": [
       "B9EF10DDFEA11EF77873CC5009809E5037FC4C7A",  // Google input tools
       "06BE211D5F014BAB34BC22D9DDA09C63A81D828E",  // Official xkb extension
       "F94EE6AB36D6C6588670B2B01EB65212D9C64E33"   // Open source xkb extension
     ]
   }],
   "app.currentWindowInternal": {
     "noparent": true,
     "internal": true,
     "channel": "stable",
-    "contexts": ["blessed_extension"]
+    "contexts": ["blessed_extension", "lock_screen_extension"]
   },
   "app.currentWindowInternal.setShape": {
     "dependencies": ["permission:app.window.shape"],
     "contexts": ["blessed_extension"]
   },
   // The API for the *embedder* of appview. Appview has both an embedder and
   // guest API, which are different.
   "appViewEmbedderInternal": {
     "internal": true,
     "contexts": ["blessed_extension"],
@@ skipping 479 matching lines @@
   }, {
     "channel": "stable",
     "contexts": ["webui"],
     "matches": [
       "chrome://chrome-signin/*",
       "chrome://media-router/*",
       "chrome://oobe/*"
     ]
   }]
 }