Introduce a layering in the invalidation component as public and impl

components/invalidation/fake_invalidation_state_tracker.cc

Index: components/invalidation/fake_invalidation_state_tracker.cc
diff --git a/components/invalidation/fake_invalidation_state_tracker.cc b/components/invalidation/fake_invalidation_state_tracker.cc
deleted file mode 100644
index 6dda92928b28a08d4fd15c022d7a19a66dcf49c6..0000000000000000000000000000000000000000
--- a/components/invalidation/fake_invalidation_state_tracker.cc
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright 2014 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 "components/invalidation/fake_invalidation_state_tracker.h"
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/location.h"
-#include "base/task_runner.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace syncer {
-
-const int64 FakeInvalidationStateTracker::kMinVersion = kint64min;
-
-FakeInvalidationStateTracker::FakeInvalidationStateTracker() {}
-
-FakeInvalidationStateTracker::~FakeInvalidationStateTracker() {}
-
-void FakeInvalidationStateTracker::ClearAndSetNewClientId(
-    const std::string& client_id) {
-  Clear();
-  invalidator_client_id_ = client_id;
-}
-
-std::string FakeInvalidationStateTracker::GetInvalidatorClientId() const {
-  return invalidator_client_id_;
-}
-
-void FakeInvalidationStateTracker::SetBootstrapData(
-    const std::string& data) {
-  bootstrap_data_ = data;
-}
-
-std::string FakeInvalidationStateTracker::GetBootstrapData() const {
-  return bootstrap_data_;
-}
-
-void FakeInvalidationStateTracker::SetSavedInvalidations(
-    const UnackedInvalidationsMap& states) {
-  unacked_invalidations_map_ = states;
-}
-
-UnackedInvalidationsMap
-FakeInvalidationStateTracker::GetSavedInvalidations() const {
-  return unacked_invalidations_map_;
-}
-
-void FakeInvalidationStateTracker::Clear() {
-  invalidator_client_id_.clear();
-  bootstrap_data_.clear();
-}
-
-}  // namespace syncer