Notify GCMAppHandlers when the store is reset, so they clear cached IDs

components/invalidation/impl/gcm_network_channel_unittest.cc

Index: components/invalidation/impl/gcm_network_channel_unittest.cc
diff --git a/components/invalidation/impl/gcm_network_channel_unittest.cc b/components/invalidation/impl/gcm_network_channel_unittest.cc
index d8ed39eef3c9c1d2567fd348f028a8b9e5f8a413..551bc3b1b0b4e1776c18ac6ae67c5157980f05e0 100644
--- a/components/invalidation/impl/gcm_network_channel_unittest.cc
+++ b/components/invalidation/impl/gcm_network_channel_unittest.cc
@@ -25,9 +25,9 @@ class TestGCMNetworkChannelDelegate : public GCMNetworkChannelDelegate {
   TestGCMNetworkChannelDelegate()
       : register_call_count_(0) {}
 
-  void Initialize(
-      GCMNetworkChannelDelegate::ConnectionStateCallback callback) override {
-    connection_state_callback = callback;
+  void Initialize(ConnectionStateCallback connection_state_callback,
+                  base::Closure store_reset_callback) override {
+    this->connection_state_callback = connection_state_callback;
   }
 
   void RequestToken(RequestTokenCallback callback) override {