[GCM] Extracting GCMConnectionObserver from GCMAppHandler

components/gcm_driver/fake_gcm_app_handler.h

Index: components/gcm_driver/fake_gcm_app_handler.h
diff --git a/components/gcm_driver/fake_gcm_app_handler.h b/components/gcm_driver/fake_gcm_app_handler.h
index a59a1c24746da7be8eb7928596c7a56b5e4086b9..eb09422f00f17be94ca6a30700c56a740a86f800 100644
--- a/components/gcm_driver/fake_gcm_app_handler.h
+++ b/components/gcm_driver/fake_gcm_app_handler.h
@@ -34,7 +34,6 @@ class FakeGCMAppHandler : public GCMAppHandler {
   const GCMClient::SendErrorDetails& send_error_details() const {
     return send_error_details_;
   }
-  bool connected() const { return connected_; }
 
   void WaitForNotification();
 
@@ -48,8 +47,6 @@ class FakeGCMAppHandler : public GCMAppHandler {
       const GCMClient::SendErrorDetails& send_error_details) OVERRIDE;
   virtual void OnSendAcknowledged(const std::string& app_id,
                                   const std::string& message_id) OVERRIDE;
-  virtual void OnConnected(const net::IPEndPoint& ip_endpoint) OVERRIDE;
-  virtual void OnDisconnected() OVERRIDE;
 
  private:
   void ClearResults();
@@ -61,7 +58,6 @@ class FakeGCMAppHandler : public GCMAppHandler {
   std::string acked_message_id_;
   GCMClient::IncomingMessage message_;
   GCMClient::SendErrorDetails send_error_details_;
-  bool connected_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeGCMAppHandler);
 };