Implement safebrowsing download feedback service, enabled for dev & canary only.

chrome/browser/safe_browsing/download_feedback.h

+// Copyright 2013 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 CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_FEEDBACK_H_
+#define CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_FEEDBACK_H_
+
+#include <string>
+
+#include "base/callback_forward.h"
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/threading/non_thread_safe.h"
+#include "chrome/browser/safe_browsing/two_phase_uploader.h"
+
+namespace content {
+class DownloadItem;
+}
+
+namespace safe_browsing {
+
+class DownloadFeedbackFactory;
+
+// Handles the uploading of a single downloaded binary to the safebrowsing
+// download feedback service.
+class DownloadFeedback : public base::NonThreadSafe {
+ public:
+  // Takes ownership of the file pointed to be |file_path|, it will be deleted
+  // when the DownloadFeedback is destructed.
+  static DownloadFeedback* Create(
+      net::URLRequestContextGetter* request_context_getter,
+      base::TaskRunner* file_task_runner,
+      const base::FilePath& file_path,
+      const std::string& ping_request,
+      const std::string& ping_response);
+
+  // The largest file size we support uploading.
+  // Note: changing this will affect the max size of
+  // SBDownloadFeedback.SizeSuccess and SizeFailure histograms.
+  static const int64 kMaxUploadSize;
+
+  virtual ~DownloadFeedback() {}
+
+  // Makes the passed |factory| the factory used to instantiate
+  // a DownloadFeedback. Useful for tests.
+  static void RegisterFactory(DownloadFeedbackFactory* factory) {
+    factory_ = factory;
+  }
+
+  // Start uploading the file to the download feedback service.
+  // |finish_callback| will be called when the upload completes or fails, but is
+  // not called if the upload is cancelled by deleting the DownloadFeedback
+  // while the upload is in progress.
+  virtual void Start(const base::Closure& finish_callback) = 0;
+
+  virtual const std::string& GetPingRequestForTesting() const = 0;
+  virtual const std::string& GetPingResponseForTesting() const = 0;
+
+ private:
+  // The factory that controls the creation of DownloadFeedback objects.
+  // This is used by tests.
+  static DownloadFeedbackFactory* factory_;
+};
+
+class DownloadFeedbackFactory {
+ public:
+  virtual ~DownloadFeedbackFactory() {}
+
+  virtual DownloadFeedback* CreateDownloadFeedback(
+      net::URLRequestContextGetter* request_context_getter,
+      base::TaskRunner* file_task_runner,
+      const base::FilePath& file_path,
+      const std::string& ping_request,
+      const std::string& ping_response) = 0;
+};
+
+}  // namespace safe_browsing
+
+#endif  // CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_FEEDBACK_H_