Support DataSaver for SharedWorker

content/browser/service_worker/service_worker_browsertest.cc

Index: content/browser/service_worker/service_worker_browsertest.cc
diff --git a/content/browser/service_worker/service_worker_browsertest.cc b/content/browser/service_worker/service_worker_browsertest.cc
index 3f96ad842386c5c7acf27cc5b5d3c694de31f0aa..043ee55422d4b1b8ac08aa9aaec60af2e9199bf5 100644
--- a/content/browser/service_worker/service_worker_browsertest.cc
+++ b/content/browser/service_worker/service_worker_browsertest.cc
@@ -82,6 +82,7 @@
 #include "storage/browser/blob/blob_data_snapshot.h"
 #include "storage/browser/blob/blob_reader.h"
 #include "storage/browser/blob/blob_storage_context.h"
+#include "third_party/WebKit/public/web/WebDataSaverFlag.h"
 
 namespace content {
 
@@ -1324,7 +1325,9 @@ class MockContentBrowserClient : public TestContentBrowserClient {
 
   void OverrideWebkitPrefs(RenderViewHost* render_view_host,
                            WebPreferences* prefs) override {
-    prefs->data_saver_enabled = data_saver_enabled_;
+    prefs->data_saver_flag = data_saver_enabled_
+                                 ? blink::WebDataSaverFlag::kEnabled
+                                 : blink::WebDataSaverFlag::kDisabled;
   }
 
  private: