[Extensions] Use compiled feature files

extensions/test/test_extensions_client.h

Index: extensions/test/test_extensions_client.h
diff --git a/extensions/test/test_extensions_client.h b/extensions/test/test_extensions_client.h
index e12f0a9ef57e8dbd6029d8c59ef0fb3f35479765..0dfd716cdc4b505492a16efd9e5c21aa36ee4d0c 100644
--- a/extensions/test/test_extensions_client.h
+++ b/extensions/test/test_extensions_client.h
@@ -33,8 +33,8 @@ class TestExtensionsClient : public ExtensionsClient {
   const std::string GetProductName() override;
   std::unique_ptr<FeatureProvider> CreateFeatureProvider(
       const std::string& name) const override;
-  std::unique_ptr<JSONFeatureProviderSource> CreateFeatureProviderSource(
-      const std::string& name) const override;
+  std::unique_ptr<JSONFeatureProviderSource> CreateAPIFeatureSource()
+      const override;
   void FilterHostPermissions(const URLPatternSet& hosts,
                              URLPatternSet* new_hosts,
                              PermissionIDSet* permissions) const override;