Chrome app manifest support for action handlers.

chrome/common/extensions/api/_manifest_features.json

Index: chrome/common/extensions/api/_manifest_features.json
diff --git a/chrome/common/extensions/api/_manifest_features.json b/chrome/common/extensions/api/_manifest_features.json
index 55bd04076c327f7590284704f7e1fbae2703dd91..39437ab2de14342d8f8e076dce4fb146239da8bf 100644
--- a/chrome/common/extensions/api/_manifest_features.json
+++ b/chrome/common/extensions/api/_manifest_features.json
@@ -7,6 +7,10 @@
 // well as feature.h, simple_feature.h, and base_feature_provider.h.
 
 {
+  "action_handlers": {

[Daniel Erat, 2017/01/12 23:55:03]

move this down to keep the list alphabetized

[michaelpg, 2017/01/13 22:17:07]

Does this have to be in //chrome/common/extensions/api instead of
//extension/common/api? Since the implementation is in //extensions  we could
make it available from there. Partly to decouple extensions APIs from Chrome,
and also to make it easier to potentially use APIs like this on app_shell.

[jdufault, 2017/01/14 00:30:42]

Done.

[jdufault, 2017/01/14 00:30:42]

Done.

+    "channel": "stable",
+    "extension_types": ["platform_app"]
+  },
   "about_page": {
     "channel": "stable",
     "extension_types": ["shared_module"]