Make all extension api types fully qualified.

chrome/common/extensions/api/tabs.json

Index: chrome/common/extensions/api/tabs.json
diff --git a/chrome/common/extensions/api/tabs.json b/chrome/common/extensions/api/tabs.json
index 848bae4337cdbd928a24e92ac4f57df883ce8702..909230d5abeab189db416c1ed5f17f2bb58d28a5 100644
--- a/chrome/common/extensions/api/tabs.json
+++ b/chrome/common/extensions/api/tabs.json
@@ -86,7 +86,7 @@
           }
         ],
         "returns": {
-          "$ref": "Port",
+          "$ref": "extension.Port",
           "description": "A port that can be used to communicate with the content scripts running in the specified tab. The port's <a href='extension.html#type-Port'>onDisconnect</a> event is fired if the tab closes or does not exist. "
         }
       },
@@ -371,7 +371,7 @@
              "parameters": [
                {
                  "name": "window",
-                 "$ref": "Window",
+                 "$ref": "windows.Window",
                  "description": "Contains details about the window whose tabs were highlighted."
                }
              ]