sync: Add GetAllSyncData to sync/api

chrome/browser/managed_mode/managed_user_registration_utility_unittest.cc

 // Copyright 2013 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.
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/managed_mode/managed_user_refresh_token_fetcher.h"
@@ skipping 29 matching lines @@
 class MockChangeProcessor : public SyncChangeProcessor {
  public:
   MockChangeProcessor() {}
   virtual ~MockChangeProcessor() {}
 
   // SyncChangeProcessor implementation:
   virtual SyncError ProcessSyncChanges(
       const tracked_objects::Location& from_here,
       const SyncChangeList& change_list) OVERRIDE;
 
+  virtual SyncDataList GetAllSyncData(syncer::ModelType type) const {
+    return SyncDataList();
+  }
+
   const SyncChangeList& changes() const { return change_list_; }
 
  private:
   SyncChangeList change_list_;
 };
 
 SyncError MockChangeProcessor::ProcessSyncChanges(
     const tracked_objects::Location& from_here,
     const SyncChangeList& change_list) {
   change_list_ = change_list;
@@ skipping 213 matching lines @@
       ManagedUserRegistrationUtility::GenerateNewManagedUserId(),
       ManagedUserRegistrationInfo(ASCIIToUTF16("Mike")),
       GetRegistrationCallback());
   EXPECT_EQ(1u, prefs()->GetDictionary(prefs::kManagedUsers)->size());
   service()->StopSyncing(MANAGED_USERS);
   EXPECT_EQ(0u, prefs()->GetDictionary(prefs::kManagedUsers)->size());
   EXPECT_TRUE(received_callback());
   EXPECT_EQ(GoogleServiceAuthError::REQUEST_CANCELED, error().state());
   EXPECT_EQ(std::string(), token());
 }