Support API aliases

chrome/test/data/extensions/extension_api_unittest/api_features.json

Index: chrome/test/data/extensions/extension_api_unittest/api_features.json
diff --git a/chrome/test/data/extensions/extension_api_unittest/api_features.json b/chrome/test/data/extensions/extension_api_unittest/api_features.json
index fb122e9338674b725b88d7778cc1e9a0e3267af6..c456d777b7406a870d67a2a27aacbf4220c3d9e7 100644
--- a/chrome/test/data/extensions/extension_api_unittest/api_features.json
+++ b/chrome/test/data/extensions/extension_api_unittest/api_features.json
@@ -106,5 +106,19 @@
     "channel": "stable",
     "contexts": ["content_script", "blessed_extension", "unblessed_extension"],
     "session_types": ["kiosk", "regular"]
+  },
+  "alias_api": {
+    "channel": "stable",
+    "source": "alias_api_source",
+    "contexts": ["content_script", "blessed_extension", "unblessed_extension"]
+  },
+  "alias_api.foo": {
+    "channel": "dev",
+    "contexts": ["blessed_extension"]
+  },
+  "alias_api_source": {
+    "channel": "dev",
+    "alias": "alias_api",
+    "contexts": ["blessed_extension"]
   }
 }