contacts: Defer updates when offline.

chrome/browser/chromeos/gdata/gdata_contacts_service_stub.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_GDATA_GDATA_CONTACTS_SERVICE_STUB_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_CONTACTS_SERVICE_STUB_H_
 
 #include "chrome/browser/chromeos/gdata/gdata_contacts_service.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/time.h"
 
 namespace contacts {
 typedef std::vector<const contacts::Contact*> ContactPointers;
 }
 
 namespace gdata {
 
 // "Stub" implementation of GDataContactsServiceInterface used for testing.
 // Returns a pre-set list of contacts in response to DownloadContacts() calls.
 class GDataContactsServiceStub : public GDataContactsServiceInterface {
  public:
   GDataContactsServiceStub();
   virtual ~GDataContactsServiceStub();
 
+  int num_download_requests() const { return num_download_requests_; }
+  void reset_stats() { num_download_requests_ = 0; }
   void set_download_should_succeed(bool succeed) {
     download_should_succeed_ = succeed;
   }
 
   // Sets the contacts that will be returned by DownloadContacts(), assuming
   // that the request's |min_update_time| matches |expected_min_update_time|.
   void SetContacts(const contacts::ContactPointers& contacts,
                    const base::Time& expected_min_update_time);
 
   // Overridden from GDataContactsServiceInterface:
   virtual void Initialize() OVERRIDE;
   virtual void DownloadContacts(SuccessCallback success_callback,
                                 FailureCallback failure_callback,
                                 const base::Time& min_update_time) OVERRIDE;
 
  private:
+  // How many times has DownloadContacts() been called?
+  int num_download_requests_;
+
   // Should calls to DownloadContacts() succeed?
   bool download_should_succeed_;
 
   // Contacts to be returned by calls to DownloadContacts().
   ScopedVector<contacts::Contact> contacts_;
 
   // |min_update_time| value that we expect to be passed to DownloadContacts().
   // If a different value is passed, we'll log an error and report failure.
   base::Time expected_min_update_time_;
 
   DISALLOW_COPY_AND_ASSIGN(GDataContactsServiceStub);
 };
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_CONTACTS_SERVICE_STUB_H_