DataSaver support for off-main-thread-fetch

third_party/WebKit/public/platform/WebWorkerFetchContext.h

Index: third_party/WebKit/public/platform/WebWorkerFetchContext.h
diff --git a/third_party/WebKit/public/platform/WebWorkerFetchContext.h b/third_party/WebKit/public/platform/WebWorkerFetchContext.h
index d453fde3190d68f6d33d5c7db1c853861d09dd31..cbe3ac73b4ec8b63744e246587d71d2a8753b7b4 100644
--- a/third_party/WebKit/public/platform/WebWorkerFetchContext.h
+++ b/third_party/WebKit/public/platform/WebWorkerFetchContext.h
@@ -36,6 +36,10 @@ class WebWorkerFetchContext {
 
   // Whether the fetch context is controlled by a service worker.
   virtual bool IsControlledByServiceWorker() const = 0;
+
+  // The flag for Data Saver.
+  virtual void SetDataSaverEnabled(bool) = 0;
+  virtual bool IsDataSaverEnabled() const = 0;
 };
 
 }  // namespace blink