Allow declarative webrequest and webrequest in extensions.

chrome/common/extensions/api/_api_features.json

 // 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.
 
 // This features file defines extension APIs implemented under src/chrome.
 // See extensions/common/features/* to understand this file, in particular
 // feature.h, simple_feature.h, and base_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.
@@ skipping 232 matching lines @@
     "contexts": ["blessed_extension"]
   },
   "debugger": {
     "dependencies": ["permission:debugger"],
     "contexts": ["blessed_extension"]
   },
   "declarativeContent": {
     "dependencies": ["permission:declarativeContent"],
     "contexts": ["blessed_extension"]
   },
-  "declarativeWebRequest": {
-    "dependencies": ["permission:declarativeWebRequest"],
-    "contexts": ["blessed_extension"]
-  },
   "desktopCapture": {
     "dependencies": ["permission:desktopCapture"],
     "contexts": ["blessed_extension"]
   },
   "developerPrivate": {
     "dependencies": ["permission:developerPrivate"],
     "contexts": ["blessed_extension"]
   },
   "devtools.inspectedWindow": {
     "dependencies": ["manifest:devtools_page"],
@@ skipping 39 matching lines @@
   },
   "enterprise.platformKeysInternal": {
     "dependencies": ["permission:enterprise.platformKeys"],
     "internal": true,
     "contexts": ["blessed_extension"]
   },
   "enterprise.platformKeysPrivate": {
     "dependencies": ["permission:enterprise.platformKeysPrivate"],
     "contexts": ["blessed_extension"]
   },
-  "events": {
-    "internal": true,
-    "channel": "stable",
-    "extension_types": ["platform_app", "extension"],
-    "contexts": "all",
-    "matches": ["<all_urls>"]
-  },
   "experienceSamplingPrivate": {
     "dependencies": ["permission:experienceSamplingPrivate"],
     "contexts": ["blessed_extension"]
   },
   "experimental.devtools.audits": {
     "dependencies": ["permission:experimental", "manifest:devtools_page"],
     "contexts": ["blessed_extension"]
   },
   "experimental.devtools.console": {
     "dependencies": ["permission:experimental", "manifest:devtools_page"],
@@ skipping 386 matching lines @@
     "contexts": ["blessed_extension"]
   },
   "wallpaperPrivate": {
     "dependencies": ["permission:wallpaperPrivate"],
     "contexts": ["blessed_extension"]
   },
   "webNavigation": {
     "dependencies": ["permission:webNavigation"],
     "contexts": ["blessed_extension"]
   },
-  "webRequest": {
-    "dependencies": ["permission:webRequest"],
-    "contexts": ["blessed_extension"]
-  },
-  "webRequestInternal": [{
-    "internal": true,
-    "channel": "stable",
-    "contexts": ["blessed_extension"]
-  }, {
-    // webview uses webRequestInternal API.
-    "channel": "stable",
-    "internal": true,
-    "contexts": ["webui"],
-    "matches": ["chrome://chrome-signin/*"]
-  }],
   "webrtcAudioPrivate": {
     "dependencies": ["permission:webrtcAudioPrivate"],
     "contexts": ["blessed_extension"]
   },
   "webrtcLoggingPrivate": {
     "dependencies": ["permission:webrtcLoggingPrivate"],
     "contexts": ["blessed_extension"]
   },
   "webstore": {
     // Hosted apps can use the webstore API from within a blessed context.
     "channel": "stable",
     // Set extension_types to 'all' to prevent webstore from being filtered.
     // Technically, webstore is not in apps or extensions, but it is currently
     // displayed on /extensions/webstore and /apps/webstore. The "contexts"
     // restriction effectively restricts this to hosted apps and webpages.
     "extension_types": "all",
     "contexts": ["blessed_web_page", "web_page"],
     // Any webpage can use the webstore API.
     "matches": ["<all_urls>"]
   },
   "webstorePrivate": {
     "dependencies": ["permission:webstorePrivate"],
     // NOTE: even though this is only used by the webstore hosted app, which
     // normally would mean blessed_web_page, component hosted apps are actually
     // given the blessed_extension denomination. Confusing.
     "contexts": ["blessed_extension"]
   },
-  "webViewRequest": [{
-    "dependencies": ["permission:webview"],
-    "contexts": ["blessed_extension"]
-  }, {
-    "channel": "stable",
-    "contexts": ["webui"],
-    "matches": ["chrome://chrome-signin/*"]
-  }],
   "webviewTag": {
     "internal": true,
     "channel": "stable",
     "dependencies": ["permission:webview"],
     "contexts": ["blessed_extension"]
   },
   "windows": {
     "dependencies": ["api:tabs"],
     "contexts": ["blessed_extension"]
   }
 }