Add NS DRP flag for data saver browser test

This fixes the last DRP related browser test in the filter file.

Bug: 721403
Change-Id: Id535fb2fea2636770ba567e601b10b3a273fd1fe
Reviewed-on: https://chromium-review.googlesource.com/c/1355769Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612399}

chrome/browser/renderer_context_menu/render_view_context_menu_browsertest.cc

@@ -45,6 +45,7 @@
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/search_test_utils.h"
 #include "chrome/test/base/ui_test_utils.h"
+#include "components/data_reduction_proxy/core/common/data_reduction_proxy_features.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_switches.h"
 #include "components/guest_view/browser/guest_view_manager_delegate.h"
 #include "components/guest_view/browser/test_guest_view_manager.h"
@@ -845,6 +846,10 @@ IN_PROC_BROWSER_TEST_F(ContextMenuBrowserTest, SuggestedFileNameCrossOrigin) {
 }
 
 IN_PROC_BROWSER_TEST_F(ContextMenuBrowserTest, DataSaverOpenOrigImageInNewTab) {
+  base::test::ScopedFeatureList feature_list;
+  feature_list.InitAndEnableFeature(
+      data_reduction_proxy::features::
+          kDataReductionProxyEnabledWithNetworkService);
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   command_line->AppendSwitch(
       data_reduction_proxy::switches::kEnableDataReductionProxy);

testing/buildbot/filters/mojo.fyi.network_browser_tests.filter

@@ -35,9 +35,6 @@
 -NativeBindings/ExternallyConnectableMessagingTest.WebConnectableWithNonEmptyTlsChannelId/0
 -NativeBindings/MessagingApiTest.DifferentStoragePartitionTLSChannelID/0
 
-# https://crbug.com/721403
--ContextMenuBrowserTest.DataSaverOpenOrigImageInNewTab
-
 # NOTE: if adding an exclusion for an existing failure (e.g. additional test for
 # feature X that is already not working), please add it beside the existing
 # failures. Otherwise please reach out to network-service-dev@.