Bug 537180 - Fennec uses old blocklisting URL [r=dtownsend a=blocking-fennec]

toolkit/mozapps/extensions/nsBlocklistService.js

@@ -866,6 +866,17 @@ Blocklist.prototype = {
       if (addonList.length == 0)
         return;
 
+      if ("@mozilla.org/addons/blocklist-prompt;1" in Cc) {
+        try {
+          let blockedPrompter = Cc["@mozilla.org/addons/blocklist-prompt;1"]
+                                 .getService(Ci.nsIBlocklistPrompt);
+          blockedPrompter.prompt(addonList);
+        } catch (e) {
+          LOG(e);
+        }
+        return;
+      }
+
       var args = {
         restart: false,
         list: addonList

xpcom/system/nsIBlocklistService.idl

@@ -40,6 +40,7 @@
 #include "nsISupports.idl"
 
 interface nsIPluginTag;
+interface nsIVariant;
 
 [scriptable, uuid(8439f9c0-da03-4260-8b21-dc635eed28fb)]
 interface nsIBlocklistService : nsISupports
@@ -114,3 +115,32 @@ interface nsIBlocklistService : nsISupports
                                         [optional] in AString appVersion,
                                         [optional] in AString toolkitVersion);
 };
+
+/**
+ * nsIBlocklistPrompt is used, if available, by the default implementation of 
+ * nsIBlocklistService to display a confirmation UI to the user before blocking
+ * extensions/plugins.
+ */
+[scriptable, uuid(36f97f40-b0c9-11df-94e2-0800200c9a66)]
+interface nsIBlocklistPrompt : nsISupports
+{
+  /**
+   * Prompt the user about newly blocked addons. The prompt is then resposible
+   * for soft-blocking any addons that need to be afterwards
+   *
+   * @param  aAddons
+   *         An array of addons and plugins that are blocked. These are javascript
+   *         objects with properties:
+   *          name    - the plugin or extension name,
+   *          version - the version of the extension or plugin,
+   *          icon    - the plugin or extension icon,
+   *          disable - can be used by the nsIBlocklistPrompt to allows users to decide
+   *                    whether a soft-blocked add-on should be disabled,
+   *          blocked - true if the item is hard-blocked, false otherwise,
+   *          item    - the nsIPluginTag or Addon object
+   * @param  aCount
+   *         The number of addons
+   */
+  void prompt([array, size_is(aCount)] in nsIVariant aAddons,
+              [optional] in PRUint32 aCount);
+};