sync: Add GetAllSyncData to sync/api

chrome/browser/managed_mode/managed_user_sync_service_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 <string>
 
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/managed_mode/managed_user_sync_service.h"
@@ skipping 23 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
+      OVERRIDE {
+    return SyncDataList();
+  }
+
   const SyncChangeList& changes() const { return change_list_; }
   SyncChange GetChange(const std::string& id) const;
 
  private:
   SyncChangeList change_list_;
 };
 
 SyncError MockChangeProcessor::ProcessSyncChanges(
     const tracked_objects::Location& from_here,
     const SyncChangeList& change_list) {
@@ skipping 183 matching lines @@
   {
     SyncChange change = change_processor()->GetChange(kUserId1);
     ASSERT_TRUE(change.IsValid());
     EXPECT_EQ(SyncChange::ACTION_ADD, change.change_type());
     const ManagedUserSpecifics& managed_user =
         change.sync_data().GetSpecifics().managed_user();
     EXPECT_EQ(kName1, managed_user.name());
     EXPECT_FALSE(managed_user.acknowledged());
   }
 }