<webview>: Implement support for package-local chrome-extension:// URLs

chrome/common/extensions/api/_manifest_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.
 
 // See c/c/e/features/* to understand this file, in particular feature.h,
 // simple_feature.h, and base_feature_provider.h.
 
 {
   "app": {
     "channel": "stable",
@@ skipping 356 matching lines @@
   },
   "version": {
     "channel": "stable",
     "extension_types": "all"
   },
   "web_accessible_resources": {
     "channel": "stable",
     "extension_types": [
       "extension", "legacy_packaged_app", "hosted_app"
     ]
+  },
+  "webview_accessible_resources": {

[Matt Perry, 2013/09/24 21:06:54]

Now that I think about it, maybe these should be grouped under a common key.
Then we could make them optional/required as needed. e.g.
  "webview": {
    "accessible_resources": [x, y, z], // required
    "privileged_partitions": [a, b] // also required?
  }

WDYT?

[Fady Samuel, 2013/09/24 23:05:02]

Agreed, that seems cleaner. Done!

+    "channel": "dev",
+    "extension_types": ["platform_app"]
+  },
+  "webview_privileged_partitions": {
+    "channel": "dev",
+    "extension_types": ["platform_app"]
   }
 }