Add modifier flags to MotionEvent

content/browser/renderer_host/input/motion_event_web.cc

Index: content/browser/renderer_host/input/motion_event_web.cc
diff --git a/content/browser/renderer_host/input/motion_event_web.cc b/content/browser/renderer_host/input/motion_event_web.cc
index 7ffdf5b432906716d69972ba7848ec6798f88e25..bff45355ce09326a5d5c922e960673667626f451 100644
--- a/content/browser/renderer_host/input/motion_event_web.cc
+++ b/content/browser/renderer_host/input/motion_event_web.cc
@@ -10,6 +10,7 @@
 #include <cmath>
 
 #include "base/logging.h"
+#include "content/browser/renderer_host/input/web_input_event_util.h"
 #include "content/common/input/web_touch_event_traits.h"
 
 using blink::WebInputEvent;
@@ -158,6 +159,10 @@ int MotionEventWeb::GetButtonState() const {
   return 0;
 }
 
+int MotionEventWeb::GetFlags() const {
+  return WebEventModifiersToEventFlags(event_.modifiers);
+}
+
 scoped_ptr<ui::MotionEvent> MotionEventWeb::Clone() const {
   return scoped_ptr<MotionEvent>(new MotionEventWeb(event_));
 }