Connect BackgroundFetch to the OfflineItemCollection

content/public/test/test_browser_context.cc

Index: content/public/test/test_browser_context.cc
diff --git a/content/public/test/test_browser_context.cc b/content/public/test/test_browser_context.cc
index 3901e7d4203e376cec85d186bd6664cf7a5dae47..4266ee09ba8ebc1a0cb6c33e506ec6f0322e3e5c 100644
--- a/content/public/test/test_browser_context.cc
+++ b/content/public/test/test_browser_context.cc
@@ -120,6 +120,10 @@ PermissionManager* TestBrowserContext::GetPermissionManager() {
   return permission_manager_.get();
 }
 
+BackgroundFetchClient* TestBrowserContext::GetBackgroundFetchClient() {
+  return nullptr;
+}
+
 BackgroundSyncController* TestBrowserContext::GetBackgroundSyncController() {
   if (!background_sync_controller_)
     background_sync_controller_.reset(new MockBackgroundSyncController());