Download driver for components/download.

components/download/internal/test/test_download_driver.h

Index: components/download/internal/test/test_download_driver.h
diff --git a/components/download/internal/test/test_download_driver.h b/components/download/internal/test/test_download_driver.h
new file mode 100644
index 0000000000000000000000000000000000000000..5ffefdcaba51e63a8149bf1bdcdb689bca1a1509
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+++ b/components/download/internal/test/test_download_driver.h
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+// 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_DOWNLOAD_INTERNAL_TEST_TEST_DOWNLOAD_DRIVER_H_
+#define COMPONENTS_DOWNLOAD_INTERNAL_TEST_TEST_DOWNLOAD_DRIVER_H_
+
+#include "base/macros.h"
+#include "components/download/internal/download_driver.h"
+
+namespace download {
+
+// Download driver that simulates content layer download logic.
+class TestDownloadDriver : public DownloadDriver {
+ public:
+  TestDownloadDriver();
+  ~TestDownloadDriver();
+
+  // Marks download driver as ready, used to test logic that depends on
+  // data initialization.
+  void MakeReady();
+
+  // Simulates download events from content layer.
+  void NotifyDownloadUpdate(const std::string& guid,
+                            const base::FilePath& path,
+                            uint64_t size);
+  void NotifyDownloadFailed(const std::string& guid, int reason);
+  void NotifyDownloadSucceeded(const std::string& guid,
+                               const base::FilePath& path,
+                               int reason);
+
+  // DownloadDriver implementation.
+  void Start(const DownloadParams& params) override;
+  void Cancel(const std::string& guid) override;
+  void Pause(const std::string& guid) override;
+  void Resume(const std::string& guid) override;
+  bool IsReady() const override;
+  void SetObserver(DownloadDriver::Observer* observer) override;
+
+ private:
+  bool is_ready_;
+  DownloadDriver::Observer* observer_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestDownloadDriver);
+};
+
+}  // namespace download
+
+#endif  // COMPONENTS_DOWNLOAD_CONTENT_TEST_TEST_DOWNLOAD_DRIVER_H_