Initial framework setup and skeleton for BackgroundFetchContext

content/browser/background_fetch/background_fetch_context.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/background_fetch_context.h"
+
+#include "content/browser/service_worker/service_worker_context_wrapper.h"
+#include "content/public/browser/browser_thread.h"
+
+namespace content {
+
+BackgroundFetchContext::BackgroundFetchContext(BrowserContext* browser_context)
+    : browser_context_(browser_context) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+}
+
+BackgroundFetchContext::~BackgroundFetchContext() = default;

[Peter Beverloo, 2017/02/08 12:20:25]

Please DCHECK_CURRENTLY_ON here too (shutdown threading matters, we've seen
plenty of bugs there)

[harkness, 2017/02/08 16:30:42]

Done.

+
+void BackgroundFetchContext::Init(
+    const scoped_refptr<ServiceWorkerContextWrapper>& context) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  // TODO(harkness) Create the Download observer.
+  // TODO(harkness) Create the Data manager.
+  // TODO(harkness) Create the Batch manager.
+  // TODO(harkness) Set up monitoring of the service worker.
+}
+
+void BackgroundFetchContext::Shutdown() {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  // TODO(harkness) Clean up all the things.
+}
+
+}  // namespace content