Split cocoa_event_utils in two parts.

ui/events/cocoa/cocoa_event_utils.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import "ui/base/cocoa/cocoa_event_utils.h"
+#import "ui/events/cocoa/cocoa_event_utils.h"
 
-#include "ui/base/window_open_disposition.h"
 #include "ui/events/event_constants.h"
 
 namespace {
 
 bool isLeftButtonEvent(NSEvent* event) {
   NSEventType type = [event type];
   return type == NSLeftMouseDown ||
     type == NSLeftMouseDragged ||
     type == NSLeftMouseUp;
 }
@@ skipping 31 matching lines @@
   flags |= (modifiers & NSShiftKeyMask) ? ui::EF_SHIFT_DOWN : 0;
   flags |= (modifiers & NSControlKeyMask) ? ui::EF_CONTROL_DOWN : 0;
   flags |= (modifiers & NSAlternateKeyMask) ? ui::EF_ALT_DOWN : 0;
   flags |= (modifiers & NSCommandKeyMask) ? ui::EF_COMMAND_DOWN : 0;
   flags |= isLeftButtonEvent(event) ? ui::EF_LEFT_MOUSE_BUTTON : 0;
   flags |= isRightButtonEvent(event) ? ui::EF_RIGHT_MOUSE_BUTTON : 0;
   flags |= isMiddleButtonEvent(event) ? ui::EF_MIDDLE_MOUSE_BUTTON : 0;
   return flags;
 }
 
-WindowOpenDisposition WindowOpenDispositionFromNSEvent(NSEvent* event) {
-  NSUInteger modifiers = [event modifierFlags];
-  return WindowOpenDispositionFromNSEventWithFlags(event, modifiers);
-}
-
-WindowOpenDisposition WindowOpenDispositionFromNSEventWithFlags(
-    NSEvent* event, NSUInteger modifiers) {
-  int event_flags = EventFlagsFromNSEventWithModifiers(event, modifiers);
-  return ui::DispositionFromEventFlags(event_flags);
-}
-
 }  // namespace ui