Allow declarative webrequest and webrequest in extensions.

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 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 37 matching lines @@
   "app.currentWindowInternal": {
     "noparent": true,
     "internal": true,
     "channel": "stable",
     "contexts": ["blessed_extension"]
   },
   "app.currentWindowInternal.setShape": {
     "dependencies": ["permission:app.window.shape"],
     "contexts": ["blessed_extension"]
   },
+  "declarativeWebRequest": {
+    "dependencies": ["permission:declarativeWebRequest"],
+    "contexts": ["blessed_extension"]
+  },
   "dns": {
     "dependencies": ["permission:dns"],
     "contexts": ["blessed_extension"]
   },
   // This is not a real API, only here for documentation purposes.
   // See http://crbug.com/275944 for background.
   "extensionTypes": {
     "internal": true,
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
     "contexts": ["blessed_extension"]
   },
+  "events": {
+    "internal": true,
+    "channel": "stable",
+    "extension_types": ["platform_app", "extension"],
+    "contexts": "all",
+    "matches": ["<all_urls>"]
+  },
   "guestViewInternal": [
     {
       "internal": true,
       "channel": "stable",
       "contexts": ["blessed_extension"]
     }, {
       "internal": true,
       "channel": "trunk",
       "contexts": ["webui"],
       "matches": [
@@ skipping 140 matching lines @@
     "location": "component"
   },
   "usb": {
     "dependencies": ["permission:usb"],
     "contexts": ["blessed_extension"]
   },
   "usbPrivate": {
     "channel": "dev",
     "contexts": ["webui"]
   },
+  "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/*"]
+  }],
   "webViewExperimentalInternal": [{
     "internal": true,
     "channel": "dev",
     "contexts": ["blessed_extension"],
     "dependencies": ["permission:webview"]
   },
   {
     "internal": true,
     "channel": "stable",
     "contexts": ["blessed_extension"],
     "dependencies": ["permission:webview"],
     "whitelist": [
       "8C3741E3AF0B93B6E8E0DDD499BB0B74839EA578",
       "E703483CEF33DEC18B4B6DD84B5C776FB9182BDB",
       "1A26E32DE447A17CBE5E9750CDBA78F58539B39C",
       "59048028102D7B4C681DBC7BC6CD980C3DC66DA3"
     ]
   }],
   "webViewInternal": [{
     "internal": true,
     "dependencies": ["permission:webview"],
     "contexts": ["blessed_extension"]
   }, {
     "internal": true,
     "channel": "dev",
     "contexts": ["webui"],
     "matches": ["chrome://chrome-signin/*"]
+  }],
+  "webViewRequest": [{
+    "dependencies": ["permission:webview"],
+    "contexts": ["blessed_extension"]
+  }, {
+    "channel": "stable",
+    "contexts": ["webui"],
+    "matches": ["chrome://chrome-signin/*"]
   }]
 }