Add a Model to the download component.

components/download/internal/test/test_store.cc

Index: components/download/internal/test/test_store.cc
diff --git a/components/download/internal/test/test_store.cc b/components/download/internal/test/test_store.cc
new file mode 100644
index 0000000000000000000000000000000000000000..01faec77b989ba5ae43a2329756d599ec48826a2
--- /dev/null
+++ b/components/download/internal/test/test_store.cc
@@ -0,0 +1,73 @@
+// Copyright 2017 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/download/internal/test/test_store.h"
+
+#include "components/download/internal/entry.h"
+
+namespace download {
+namespace test {
+
+TestStore::TestStore()
+    : ready_(false), init_called_(false), destroy_called_(false) {}
+
+TestStore::~TestStore() {}
+
+bool TestStore::IsInitialized() {
+  return ready_;
+}
+
+void TestStore::Initialize(InitCallback callback) {
+  init_called_ = true;
+  init_callback_ = std::move(callback);
+}
+
+void TestStore::Destroy(StoreCallback callback) {
+  destroy_called_ = true;
+  destroy_callback_ = std::move(callback);
+}
+
+void TestStore::Update(const Entry& entry, StoreCallback callback) {
+  updated_entries_.push_back(entry);
+  update_callback_ = std::move(callback);
+}
+
+void TestStore::Remove(const std::string& guid, StoreCallback callback) {
+  removed_entries_.push_back(guid);
+  remove_callback_ = std::move(callback);
+}
+
+// Callback trigger methods.
+void TestStore::TriggerInit(bool success,
+                            std::unique_ptr<std::vector<Entry>> entries) {
+  ready_ = success;
+  DCHECK(init_callback_);
+  std::move(init_callback_).Run(success, std::move(entries));
+}
+
+void TestStore::TriggerDestroy(bool success) {
+  DCHECK(destroy_callback_);
+  std::move(destroy_callback_).Run(success);
+}
+
+void TestStore::TriggerUpdate(bool success) {
+  DCHECK(update_callback_);
+  std::move(update_callback_).Run(success);
+}
+
+void TestStore::TriggerRemove(bool success) {
+  DCHECK(remove_callback_);
+  std::move(remove_callback_).Run(success);
+}
+
+const Entry* TestStore::LastUpdatedEntry() const {
+  return &updated_entries_.back();
+}
+
+std::string TestStore::LastRemovedEntry() const {
+  return removed_entries_.back();
+}
+
+}  // namespace test
+}  // namespace download