events: Preserve pointer details in native MouseEvent constructor

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 74884392a5e40acbbb6d4b7f60cc8a502c131d49..ab4779a737697008e815f0e04c09548a57178c45 100644
--- a/ui/events/event_utils.h
+++ b/ui/events/event_utils.h
@@ -9,6 +9,7 @@
 #include "base/event_types.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
+#include "ui/events/event.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/gfx/display.h"
@@ -93,6 +94,10 @@ EVENTS_EXPORT bool IsCharFromNative(const base::NativeEvent& native_event);
 EVENTS_EXPORT int GetChangedMouseButtonFlagsFromNative(
     const base::NativeEvent& native_event);
 
+// Returns the detailed pointer information for mouse events.
+EVENTS_EXPORT PointerDetails GetMousePointerDetailsFromNative(
+    const base::NativeEvent& native_event);
+
 // Gets the mouse wheel offsets from a native event.
 EVENTS_EXPORT gfx::Vector2d GetMouseWheelOffset(
     const base::NativeEvent& native_event);