sync: Add GetAllSyncData to sync/api

chrome/browser/policy/managed_mode_policy_provider_unittest.cc

 // 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.
 
 #include "base/callback.h"
 #include "base/json/json_reader.h"
 #include "base/prefs/testing_pref_store.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/policy/configuration_policy_provider_test.h"
 #include "chrome/browser/policy/external_data_fetcher.h"
@@ skipping 14 matching lines @@
   MockChangeProcessor() {}
   virtual ~MockChangeProcessor() {}
 
   // SyncChangeProcessor implementation:
   virtual syncer::SyncError ProcessSyncChanges(
       const tracked_objects::Location& from_here,
       const syncer::SyncChangeList& change_list) OVERRIDE;
 
   const syncer::SyncChangeList& changes() const { return change_list_; }
 
+  virtual syncer::SyncDataList GetAllSyncData(syncer::ModelType type) const
+      OVERRIDE {
+    return syncer::SyncDataList();
+  }
+
  private:
   syncer::SyncChangeList change_list_;
 
   DISALLOW_COPY_AND_ASSIGN(MockChangeProcessor);
 };
 
 syncer::SyncError MockChangeProcessor::ProcessSyncChanges(
     const tracked_objects::Location& from_here,
     const syncer::SyncChangeList& change_list) {
   change_list_ = change_list;
@@ skipping 340 matching lines @@
       PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
   policy_map->Set(kPolicyKey,
                   POLICY_LEVEL_MANDATORY,
                   POLICY_SCOPE_USER,
                   policy_value.DeepCopy(),
                   NULL);
   EXPECT_TRUE(provider_.policies().Equals(expected_bundle));
 }
 
 }  // namespace policy