Send wheel gestures from event sender.

components/test_runner/web_test_interfaces.cc

Index: components/test_runner/web_test_interfaces.cc
diff --git a/components/test_runner/web_test_interfaces.cc b/components/test_runner/web_test_interfaces.cc
index 120b57e38d6c1adefcadb7c4ff7278b796972a14..ce6cc8785a322d5cc466ad781ae88bac2a0e712a 100644
--- a/components/test_runner/web_test_interfaces.cc
+++ b/components/test_runner/web_test_interfaces.cc
@@ -7,6 +7,7 @@
 #include <utility>
 
 #include "components/test_runner/app_banner_client.h"
+#include "components/test_runner/event_sender.h"
 #include "components/test_runner/mock_web_audio_device.h"
 #include "components/test_runner/mock_web_media_stream_center.h"
 #include "components/test_runner/mock_web_midi_accessor.h"
@@ -49,6 +50,10 @@ void WebTestInterfaces::ConfigureForTestWithURL(const WebURL& test_url,
   interfaces_->ConfigureForTestWithURL(test_url, generate_pixels);
 }
 
+void WebTestInterfaces::SetSendWheelGestures(bool send_gestures) {
+  interfaces_->GetEventSender()->set_send_wheel_gestures(send_gestures);
+}
+
 WebTestRunner* WebTestInterfaces::TestRunner() {
   return interfaces_->GetTestRunner();
 }