[GCM] Extracting GCMConnectionObserver from GCMAppHandler

components/gcm_driver/fake_gcm_app_handler.cc

Index: components/gcm_driver/fake_gcm_app_handler.cc
diff --git a/components/gcm_driver/fake_gcm_app_handler.cc b/components/gcm_driver/fake_gcm_app_handler.cc
index 40258eb47bc59280f6d724d4d30f465c35aedb0c..3ac6b081873f7a861731525605e064b0a529bf01 100644
--- a/components/gcm_driver/fake_gcm_app_handler.cc
+++ b/components/gcm_driver/fake_gcm_app_handler.cc
@@ -9,7 +9,7 @@
 namespace gcm {
 
 FakeGCMAppHandler::FakeGCMAppHandler()
-    : received_event_(NO_EVENT), connected_(false) {
+    : received_event_(NO_EVENT) {
 }
 
 FakeGCMAppHandler::~FakeGCMAppHandler() {
@@ -71,12 +71,4 @@ void FakeGCMAppHandler::ClearResults() {
   send_error_details_ = GCMClient::SendErrorDetails();
 }
 
-void FakeGCMAppHandler::OnConnected(const net::IPEndPoint& ip_endpoint) {
-  connected_ = true;
-}
-
-void FakeGCMAppHandler::OnDisconnected() {
-  connected_ = false;
-}
-
 }  // namespace gcm