Distinguish between keystroke and character events.

ui/events/event_utils.h

Index: ui/events/event_utils.h
diff --git a/ui/events/event_utils.h b/ui/events/event_utils.h
index 749ed92adfd6cf8f11d60c2557830729e13591eb..aca918e92f7219bd132bfb53bcb56864640efe34 100644
--- a/ui/events/event_utils.h
+++ b/ui/events/event_utils.h
@@ -86,6 +86,10 @@ EVENTS_EXPORT const char* CodeFromNative(
 EVENTS_EXPORT uint32 PlatformKeycodeFromNative(
     const base::NativeEvent& native_event);
 
+// Returns true if the keyboard event is a character event rather than
+// a keystroke event.
+EVENTS_EXPORT bool IsCharFromNative(const base::NativeEvent& native_event);
+
 // Returns the flags of the button that changed during a press/release.
 EVENTS_EXPORT int GetChangedMouseButtonFlagsFromNative(
     const base::NativeEvent& native_event);