Support API aliases

tools/json_schema_compiler/feature_compiler.py

Index: tools/json_schema_compiler/feature_compiler.py
diff --git a/tools/json_schema_compiler/feature_compiler.py b/tools/json_schema_compiler/feature_compiler.py
index 9e0b8fb6883c2a1116e1936c8568e4cc155780c3..42527469db1d9e5d9437851b5b668edf5e6778a6 100644
--- a/tools/json_schema_compiler/feature_compiler.py
+++ b/tools/json_schema_compiler/feature_compiler.py
@@ -102,6 +102,9 @@ CC_FILE_END = """
 # an empty definition ({}) is used.
 FEATURE_GRAMMAR = (
   {
+    'alias': {

[Devlin, 2016/11/14 18:03:56]

We need to test these.  We also need to throw errors if:
- The alias doesn't exist
- The source doesn't exist
- There are more than one alias/sources specified on complex features

[tbarzic, 2016/11/15 04:45:07]

Done.

+      unicode: {}
+    },
     'blacklist': {
       list: {'subtype': unicode}
     },
@@ -197,6 +200,9 @@ FEATURE_GRAMMAR = (
         }
       }
     },
+    'source': {
+      unicode: {}
+    },
     'whitelist': {
       list: {'subtype': unicode}
     },
@@ -228,13 +234,26 @@ VALIDATION = ({
      'ManifestFeatures must specify at least one extension type'),
     (partial(DoesNotHaveProperty, 'contexts'),
      'ManifestFeatures do not support contexts.'),
+    (partial(DoesNotHaveProperty, 'alias'),
+     'ManifestFeatures do not support alias.'),
+    (partial(DoesNotHaveProperty, 'source'),
+     'ManifestFeatures do not support source.'),
   ],
-  'BehaviorFeature': [],
+  'BehaviorFeature': [
+    (partial(DoesNotHaveProperty, 'alias'),
+     'BehaviorFeatures do not support alias.'),
+    (partial(DoesNotHaveProperty, 'source'),
+     'BehaviorFeatures do not support source.'),
+   ],
   'PermissionFeature': [
     (partial(HasProperty, 'extension_types'),
      'PermissionFeatures must specify at least one extension type'),
     (partial(DoesNotHaveProperty, 'contexts'),
      'PermissionFeatures do not support contexts.'),
+    (partial(DoesNotHaveProperty, 'alias'),
+     'PermissionFeatures do not support alias.'),
+    (partial(DoesNotHaveProperty, 'source'),
+     'PermissionFeatures do not support source.'),
   ],
 })