[GCM] Add app handler support for connection events

components/gcm_driver/fake_gcm_client.cc

Index: components/gcm_driver/fake_gcm_client.cc
diff --git a/components/gcm_driver/fake_gcm_client.cc b/components/gcm_driver/fake_gcm_client.cc
index 989812441e961226c50ff5c0cde27f45ee972deb..6cfeb20a19a170785631c5036ad1f93f0c5abb66 100644
--- a/components/gcm_driver/fake_gcm_client.cc
+++ b/components/gcm_driver/fake_gcm_client.cc
@@ -11,6 +11,7 @@
 #include "base/sys_byteorder.h"
 #include "base/time/time.h"
 #include "google_apis/gcm/base/encryptor.h"
+#include "net/base/ip_endpoint.h"
 
 namespace gcm {
 
@@ -61,6 +62,7 @@ void FakeGCMClient::DoLoading() {
 void FakeGCMClient::Stop() {
   DCHECK(io_thread_->RunsTasksOnCurrentThread());
   status_ = STOPPED;
+  delegate_->OnDisconnected();
 }
 
 void FakeGCMClient::CheckOut() {
@@ -168,6 +170,7 @@ std::string FakeGCMClient::GetRegistrationIdFromSenderIds(
 
 void FakeGCMClient::CheckinFinished() {
   delegate_->OnGCMReady();
+  delegate_->OnConnected(net::IPEndPoint());
 }
 
 void FakeGCMClient::RegisterFinished(const std::string& app_id,