Fix dependencies on OutOfProcessPatcher.

components/update_client/out_of_process_patcher.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_UPDATE_CLIENT_OUT_OF_PROCESS_PATCHER_H_
+#define COMPONENTS_UPDATE_CLIENT_OUT_OF_PROCESS_PATCHER_H_
+
+namespace update_client {

[sdefresne, 2017/05/10 07:58:52]

Move this below the #include and the forward-declaration of the "base"
namespace.

+
+#include <string>
+
+#include "base/callback_forward.h"
+#include "base/memory/ref_counted.h"
+
+namespace base {
+class FilePath;
+class SequencedTaskRunner;
+}
+
+// An interface an embedder may fulfill to enable out-of-process patching.
+class OutOfProcessPatcher
+    : public base::RefCountedThreadSafe<OutOfProcessPatcher> {
+ public:
+  virtual void Patch(
+      const std::string& operation,
+      const scoped_refptr<base::SequencedTaskRunner>& task_runner,
+      const base::FilePath& input_abs_path,
+      const base::FilePath& patch_abs_path,
+      const base::FilePath& output_abs_path,
+      const base::Callback<void(int result)>& callback) = 0;
+
+ protected:
+  friend class base::RefCountedThreadSafe<OutOfProcessPatcher>;
+
+  virtual ~OutOfProcessPatcher() {}
+};
+
+}  // namespace update_client
+
+#endif  // COMPONENTS_UPDATE_CLIENT_OUT_OF_PROCESS_PATCHER_H_