Hook up ProfileIOData's URLRequestContext to a NetworkService.

content/browser/browsing_data/browsing_data_remover_impl_unittest.cc

Index: content/browser/browsing_data/browsing_data_remover_impl_unittest.cc
diff --git a/content/browser/browsing_data/browsing_data_remover_impl_unittest.cc b/content/browser/browsing_data/browsing_data_remover_impl_unittest.cc
index 960c1eb7f4e174f32f6abadf4868139519dedd58..403c0ba370c7682d23863ee0c347f955a89676b2 100644
--- a/content/browser/browsing_data/browsing_data_remover_impl_unittest.cc
+++ b/content/browser/browsing_data/browsing_data_remover_impl_unittest.cc
@@ -139,6 +139,7 @@ class TestStoragePartition : public StoragePartition {
   net::URLRequestContextGetter* GetMediaURLRequestContext() override {
     return nullptr;
   }
+  mojom::NetworkContext* GetNetworkContext() override { return nullptr; }
   storage::QuotaManager* GetQuotaManager() override { return nullptr; }
   AppCacheService* GetAppCacheService() override { return nullptr; }
   storage::FileSystemContext* GetFileSystemContext() override {