Bug 793764 - Decode addons too to not operate on a string. r=jhammel

mozmill/mozmill/__init__.py

@@ -425,6 +425,10 @@ def get_appinfo(self, bridge):
         try:
             mozmill = jsbridge.JSObject(bridge, js_module_mozmill)
             app_info = json.loads(mozmill.getApplicationDetails())
+
+            # Bug 793764: The addons object is encoded twice so json.loads()
+            # has to be called once more on it.
+            app_info['addons'] = json.loads(app_info['addons'])
         except JSBridgeDisconnectError:
             # We don't have to call report_disconnect here because
             # start_runner() will handle this exception

mozmill/mozmill/extension/resource/driver/mozmill.js

@@ -122,6 +122,8 @@ if (typeof AddonManager != "undefined") {
         return value;
       }
 
+      // Bug 793764: Extra encode add-on details to circumvent
+      // an unicode issue with JSBridge
       addons = converter.ConvertToUnicode(JSON.stringify(addonList, replacer));
   });
 }