[subresource_filter] add //chrome level unit test harness

components/subresource_filter/content/browser/fake_safe_browsing_database_manager.h

+// 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.
+
+#ifndef COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_FAKE_SAFE_BROWSING_DATABASE_MANAGER_H_
+#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_FAKE_SAFE_BROWSING_DATABASE_MANAGER_H_
+
+#include <map>
+
+#include "base/macros.h"
+#include "components/safe_browsing_db/test_database_manager.h"
+#include "content/public/common/resource_type.h"
+
+class GURL;
+
+// Database manager that allows any URL to be configured as blacklisted for
+// testing.
+class FakeSafeBrowsingDatabaseManager
+    : public safe_browsing::TestSafeBrowsingDatabaseManager {
+ public:
+  FakeSafeBrowsingDatabaseManager();
+
+  void AddBlacklistedUrl(const GURL& url,
+                         safe_browsing::SBThreatType threat_type);
+
+  void SimulateTimeout();
+
+ protected:
+  ~FakeSafeBrowsingDatabaseManager() override;
+
+  // safe_browsing::TestSafeBrowsingDatabaseManager:
+  bool CheckUrlForSubresourceFilter(const GURL& url, Client* client) override;
+  bool CheckResourceUrl(const GURL& url, Client* client) override;
+  bool IsSupported() const override;
+  void CancelCheck(Client* client) override;
+  bool ChecksAreAlwaysAsync() const override;
+  bool CanCheckResourceType(
+      content::ResourceType /* resource_type */) const override;
+  safe_browsing::ThreatSource GetThreatSource() const override;
+  bool CheckExtensionIDs(const std::set<std::string>& extension_ids,
+                         Client* client) override;
+
+ private:
+  std::map<GURL, safe_browsing::SBThreatType> url_to_threat_type_;
+  bool simulate_timeout_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeSafeBrowsingDatabaseManager);
+};
+
+#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_FAKE_SAFE_BROWSING_DATABASE_MANAGER_H_