Move chrome.runtime to //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.
 
 {
   "dns": {
     "dependencies": ["permission:dns"],
     "contexts": ["blessed_extension"]
   },
+  "runtime": {
+    "channel": "stable",
+    "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
+    "contexts": ["blessed_extension"]
+  },
+  "runtime.getManifest": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.connect": {
+    "contexts": "all",
+    "matches": ["<all_urls>"]
+  },
+  "runtime.getURL": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.id": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.lastError": {
+    "contexts": "all",
+    "extension_types": "all",
+    "matches": ["<all_urls>"]
+  },
+  "runtime.onConnect": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.onMessage": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.reload": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.requestUpdateCheck": {
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
+  "runtime.sendMessage": {
+    "contexts": "all",
+    "matches": ["<all_urls>"]
+  },
+  "runtime.setUninstallURL": {
+    "channel": "dev",
+    "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
+  },
   "socket": {
     "dependencies": ["permission:socket"],
     "contexts": ["blessed_extension"]
   },
   "sockets.tcp": {
     "dependencies": ["manifest:sockets"],
     "contexts": ["blessed_extension"]
   },
   "sockets.tcpServer": {
     "dependencies": ["manifest:sockets"],
     "contexts": ["blessed_extension"]
   },
   "sockets.udp": {
     "dependencies": ["manifest:sockets"],
     "contexts": ["blessed_extension"]
   },
   "storage": {
     "dependencies": ["permission:storage"],
     "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
   },
   "test": {
     "internal": true,
     "channel": "stable",
     "extension_types": "all",
     "contexts": ["blessed_extension", "unblessed_extension", "content_script"]
   },
+  "types": {
+    "channel": "stable",
+    "extension_types": ["extension", "legacy_packaged_app", "platform_app"],
+    "contexts": ["blessed_extension"]
+  },
+  "types.private": {
+    "channel": "dev",
+    "extension_types": ["extension"],
+    "location": "component"
+  },
   "usb": {
     "dependencies": ["permission:usb"],
     "contexts": ["blessed_extension"]
   }
 }