Added 'launcher_page' field to extension manifest.json format.

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 8bdb323cd64c8037058e9f6702d57b8765975cb8..f064b6276f36820e3f47b6221fb5ab2366c7afdc 100644
--- a/chrome/common/extensions/api/_manifest_features.json
+++ b/chrome/common/extensions/api/_manifest_features.json
@@ -224,6 +224,26 @@
     "channel": "stable",
     "extension_types": "all"
   },
+  "launcher_page": {
+    "channel": "stable",
+    "min_manifest_version": 2,

[benwells, 2014/08/15 08:30:21]

Do you need to specify this?

[Matt Giuca, 2014/08/15 08:35:40]

Well, no, but I assumed all new features should require manifest version 2.

+    "extension_types": ["platform_app"],
+    "whitelist": [
+      "07BD6A765FFC289FF755D7CAB2893A40EC337FEC",  // http://crbug.com/404000
+      "896B85CC7E913E11C34892C1425A093C0701D386",  // http://crbug.com/404000
+      "11A01C82EF355E674E4F9728A801F5C3CB40D83F"   // http://crbug.com/404000
+    ]
+  },
+  "launcher_page.page": {

[benwells, 2014/08/15 08:30:21]

You shouldn't need this, it should be inherited from launcher_page.

[Matt Giuca, 2014/08/15 08:35:40]

Done.

+    "channel": "stable",
+    "min_manifest_version": 2,
+    "extension_types": ["platform_app"]
+  },
+  "launcher_page.icons": {
+    "channel": "stable",
+    "min_manifest_version": 2,
+    "extension_types": ["platform_app"]
+  },
   "manifest_version": {
     "channel": "stable",
     "extension_types": "all"