WindowOpenDisposition should not be exposed in base and ui modules. (1) Gdk refactoring

chrome/browser/ui/gtk/gtk_util.h

Index: chrome/browser/ui/gtk/gtk_util.h
diff --git a/chrome/browser/ui/gtk/gtk_util.h b/chrome/browser/ui/gtk/gtk_util.h
index 3347f1f3265813dd87a7343726bfbf8fd66431a3..81300b6c8d05d7db828aaa3c26dc72f800c2b7cf 100644
--- a/chrome/browser/ui/gtk/gtk_util.h
+++ b/chrome/browser/ui/gtk/gtk_util.h
@@ -37,10 +37,12 @@ const int kSkiaToGDKMultiplier = 257;
 
 namespace event_utils {
 
-// Translates event flags into what kind of disposition they represent.
+// Translates GdkEvent state into what kind of disposition they represent.
 // For example, a middle click would mean to open a background tab.
-// event_flags are the state in the GdkEvent structure.
-WindowOpenDisposition DispositionFromEventFlags(guint state);
+WindowOpenDisposition DispositionFromGdkState(guint state);
+
+// Translates event flags into plaform independent event flags.
+int EventFlagsFromGdkState(guint state);
 
 }  // namespace event_utils