Fire the `backgroundfetchfail` event for failed fetches

content/browser/background_fetch/background_fetch_data_manager.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 CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_DATA_MANAGER_H_
 #define CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_DATA_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 23 matching lines @@
  public:
   using CreateRegistrationCallback = base::OnceCallback<void(
       blink::mojom::BackgroundFetchError,
       std::vector<scoped_refptr<BackgroundFetchRequestInfo>>)>;
   using DeleteRegistrationCallback =
       base::OnceCallback<void(blink::mojom::BackgroundFetchError)>;
   using NextRequestCallback =
       base::OnceCallback<void(scoped_refptr<BackgroundFetchRequestInfo>)>;
   using SettledFetchesCallback =
       base::OnceCallback<void(blink::mojom::BackgroundFetchError,
+                              bool /* background_fetch_succeeded */,
                               std::vector<BackgroundFetchSettledFetch>,
                               std::vector<std::unique_ptr<BlobHandle>>)>;
 
   explicit BackgroundFetchDataManager(BrowserContext* browser_context);
   ~BackgroundFetchDataManager();
 
   // Creates and stores a new registration with the given properties. Will
   // invoke the |callback| when the registration has been created, which may
   // fail due to invalid input or storage errors.
   void CreateRegistration(
@@ skipping 42 matching lines @@
       registrations_;
 
   base::WeakPtrFactory<BackgroundFetchDataManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundFetchDataManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_DATA_MANAGER_H_