Support DataSaver for SharedWorker

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 cbe3ac73b4ec8b63744e246587d71d2a8753b7b4..e11e33ac6aba06f3b8039db85c1a87800b4a03fe 100644
--- a/third_party/WebKit/public/platform/WebWorkerFetchContext.h
+++ b/third_party/WebKit/public/platform/WebWorkerFetchContext.h
@@ -5,6 +5,8 @@
 #ifndef WebWorkerFetchContext_h
 #define WebWorkerFetchContext_h
 
+#include "third_party/WebKit/public/web/WebDataSaverFlag.h"
+
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
@@ -38,8 +40,8 @@ class WebWorkerFetchContext {
   virtual bool IsControlledByServiceWorker() const = 0;
 
   // The flag for Data Saver.
-  virtual void SetDataSaverEnabled(bool) = 0;
-  virtual bool IsDataSaverEnabled() const = 0;
+  virtual void SetDataSaverFlag(blink::WebDataSaverFlag) = 0;
+  virtual blink::WebDataSaverFlag DataSaverFlag() const = 0;
 };
 
 }  // namespace blink