sync: move invalidation version prefs out of SyncPrefs into InvalidatorStorage.

sync/notifier/chrome_invalidation_client_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 <string>
 
 #include "base/message_loop.h"
 #include "google/cacheinvalidation/include/invalidation-client.h"
 #include "google/cacheinvalidation/include/types.h"
 #include "google/cacheinvalidation/v2/types.pb.h"
@@ skipping 34 matching lines @@
   MOCK_METHOD1(OnInvalidate, void(const syncable::ModelTypePayloadMap&));
   MOCK_METHOD1(OnSessionStatusChanged, void(bool));
 };
 
 class MockInvalidationStateTracker
     : public InvalidationStateTracker,
       public base::SupportsWeakPtr<MockInvalidationStateTracker> {
  public:
   MOCK_CONST_METHOD0(GetAllMaxVersions, InvalidationVersionMap());
   MOCK_METHOD2(SetMaxVersion, void(syncable::ModelType, int64));
+  MOCK_CONST_METHOD0(GetInvalidationState, std::string());
+  MOCK_METHOD1(SetInvalidationState, void(const std::string&));
 };
 
 class MockStateWriter : public StateWriter {
  public:
   MOCK_METHOD1(WriteState, void(const std::string&));
 };
 
 }  // namespace
 
 class ChromeInvalidationClientTest : public testing::Test {
@@ skipping 201 matching lines @@
   // Registered types should be preserved across Stop/Start.
   TearDown();
   SetUp();
   EXPECT_CALL(mock_listener_, OnInvalidate(MakeMapFromSet(types, "")));
   FireInvalidateAll();
 }
 
 // TODO(akalin): Flesh out unit tests.
 
 }  // namespace sync_notifier