bug 368272: notify observers when microsummary generators are installed or updated to improve the API for extensions that add generator-related functionality (like Microsummary Manager)Patch by Ryan Flint.r=myk

browser/components/microsummaries/public/nsIMicrosummaryServiceNonPlaces.idl

@@ -35,7 +35,7 @@ interface nsIMicrosummaryObserver : nsISupports
 };
 
 
-[scriptable, uuid(67ffe6b0-d4db-485c-ba20-5e2e8319b78d)]
+[scriptable, uuid(71c469b4-6e31-427e-922d-48aafbd17344)]
 interface nsIMicrosummaryGenerator : nsISupports
 {
     // Has the generator itself, which may be a remote resource, been loaded.
@@ -62,6 +62,11 @@ interface nsIMicrosummaryGenerator : nsISupports
     // of the generators they create.
     readonly attribute nsIURI uri;
 
+    // For generators installed by the user or bundled with the browser, the
+    // local URI points to the location of the local file containing the
+    // generator's XML.
+    readonly attribute nsIURI localURI;
+
     // Whether or not this generator needs page content to generate
     // a microsummary. Microsummaries generated by XSLT templates need page
     // content, while those which represent the actual microsummary content