Push API: Fix unsubscribing from GCM on Android

components/gcm_driver/gcm_driver_desktop_unittest.cc

Index: components/gcm_driver/gcm_driver_desktop_unittest.cc
diff --git a/components/gcm_driver/gcm_driver_desktop_unittest.cc b/components/gcm_driver/gcm_driver_desktop_unittest.cc
index e20081efd3c1f7cd7e3b9e36ae2ee13a91616316..b4f8c1e1a08482968a5f61f567c174c8c930a0f4 100644
--- a/components/gcm_driver/gcm_driver_desktop_unittest.cc
+++ b/components/gcm_driver/gcm_driver_desktop_unittest.cc
@@ -294,9 +294,11 @@ void GCMDriverTest::Unregister(const std::string& app_id,
                                WaitToFinish wait_to_finish) {
   base::RunLoop run_loop;
   async_operation_completed_callback_ = run_loop.QuitClosure();
+  std::vector<std::string> sender_ids;  // These are ignored on desktop.
   driver_->Unregister(app_id,
-                       base::Bind(&GCMDriverTest::UnregisterCompleted,
-                                  base::Unretained(this)));
+                      sender_ids,
+                      base::Bind(&GCMDriverTest::UnregisterCompleted,
+                                 base::Unretained(this)));
   if (wait_to_finish == WAIT)
     run_loop.Run();
 }