Differential updates for components.

chrome/browser/component_updater/component_patcher_mock.h

+// Copyright (c) 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_COMPONENT_UPDATER_TEST_COMPONENT_PATCHER_MOCK_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_PATCHER_MOCK_H_
+
+#include "base/files/file_path.h"
+#include "chrome/browser/component_updater/component_patcher.h"
+
+class MockComponentPatcher : public ComponentPatcher {
+ public:
+  MockComponentPatcher() {}
+  virtual DeltaUpdateResult Patch(PatchType patch_type,
+                                  const base::FilePath& input_file,
+                                  const base::FilePath& patch_file,
+                                  const base::FilePath& output_file,
+                                  int* error) OVERRIDE;
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockComponentPatcher);
+};
+
+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_PATCHER_MOCK_H_