Added function to get list of networks with prefetched passwords.

chrome/common/extensions/api/gcd_private.idl

Index: chrome/common/extensions/api/gcd_private.idl
diff --git a/chrome/common/extensions/api/gcd_private.idl b/chrome/common/extensions/api/gcd_private.idl
index c0fb64b76bbd159b8c377f94de8834dc95e28f8b..918a80d95ccb4cd2710ff0cf134af74b55d7aeba 100644
--- a/chrome/common/extensions/api/gcd_private.idl
+++ b/chrome/common/extensions/api/gcd_private.idl
@@ -96,6 +96,9 @@ namespace gcdPrivate {
   // |success| Denotes whether the password fetch has succeeded or failed.
   callback SuccessCallback = void(boolean success);
 
+  // Called as a response to |getPrefetchedWifiNameList|
+  // |list| the list of ssids for which wifi passwords were prefetched.
+  callback SSIDListCallback = void(DOMString[] networks);
 
   interface Functions {
     // Returns the list of cloud devices visible locally or available in the
@@ -113,6 +116,9 @@ namespace gcdPrivate {
     // with true if wifi password was cached and false if it was unavailable.
     static void prefetchWifiPassword(DOMString ssid, SuccessCallback callback);
 
+    // Get the list of ssids with prefetched callbacks.
+    static void getPrefetchedWifiNameList(SSIDListCallback callback);
+
     // Establish the session.
     static void establishSession(DOMString ipAddress,
                                  long port,