[BackgroundSync] Add BackgroundSyncController to Chrome

The new BackgroundSyncController allows content::BackgroundSyncManager to access Chrome features like Rappor and, in a followup CL, the BackgroundSyncLauncher.

BUG=538640

Review URL: https://codereview.chromium.org/1369823003

Cr-Commit-Position: refs/heads/master@{#352605}

1 files changed, 35 insertions, 0 deletions

diff --git a/chrome/browser/background_sync/background_sync_controller_factory.h b/chrome/browser/background_sync/background_sync_controller_factory.h
new file mode 100644
index 0000000..b93dbe9
--- /dev/null
+++ b/chrome/browser/background_sync/background_sync_controller_factory.h
@@ -0,0 +1,35 @@
+// Copyright 2015 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_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTROLLER_FACTORY_H_
+#define CHROME_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTROLLER_FACTORY_H_
+
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+class BackgroundSyncControllerImpl;
+class Profile;
+
+class BackgroundSyncControllerFactory
+    : public BrowserContextKeyedServiceFactory {
+ public:
+  static BackgroundSyncControllerImpl* GetForProfile(Profile* profile);
+  static BackgroundSyncControllerFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<BackgroundSyncControllerFactory>;
+
+  BackgroundSyncControllerFactory();
+  ~BackgroundSyncControllerFactory() override;
+
+  // BrowserContextKeyedBaseFactory methods:
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* context) const override;
+  content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(BackgroundSyncControllerFactory);
+};
+
+#endif  // CHROME_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTROLLER_FACTORY_H_