Initial framework setup and skeleton for BackgroundFetchContext

content/browser/background_fetch/fetch_request.cc

+// 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.
+
+#include "content/browser/background_fetch/fetch_request.h"
+
+#include <string>
+
+#include "base/guid.h"
+#include "content/public/browser/download_item.h"
+
+namespace content {
+
+FetchRequest::FetchRequest() = default;

[Peter Beverloo, 2017/02/14 15:05:52]

You need to initialize sw_registration_id_ here and in the copy constructor.

[harkness, 2017/02/15 13:48:44]

I gave it a default value.

+
+FetchRequest::FetchRequest(const url::Origin& origin,
+                           const GURL& url,
+                           int64_t sw_registration_id,

[Peter Beverloo, 2017/02/14 15:05:52]

note: try to avoid acronyms (sw -> service_worker_registration_id)

[harkness, 2017/02/15 13:48:44]

Done.

+                           const std::string& tag)
+    : guid_(base::GenerateGUID()),
+      origin_(origin),
+      url_(url),
+      sw_registration_id_(sw_registration_id),
+      tag_(tag) {}
+
+FetchRequest::FetchRequest(const FetchRequest& request)
+    : guid_(request.guid_),
+      origin_(request.origin_),
+      url_(request.url_),
+      tag_(request.tag_) {}
+
+FetchRequest::~FetchRequest() = default;
+
+}  // namespace content