[Mac] Enable MacViews site settings bubble behind --enable-mac-views-dialogs.

ui/gfx/mac/coordinate_conversion.mm

 // Copyright 2014 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/gfx/mac/coordinate_conversion.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "ui/gfx/geometry/rect.h"
 
@@ skipping 16 matching lines @@
                     rect.height());
 }
 
 gfx::Rect ScreenRectFromNSRect(const NSRect& rect) {
   return gfx::Rect(rect.origin.x,
                    PrimaryDisplayHeight() - rect.origin.y - rect.size.height,
                    rect.size.width,
                    rect.size.height);
 }
 
+NSPoint ScreenPointToNSPoint(const gfx::Point& point) {
+  return NSMakePoint(point.x(), PrimaryDisplayHeight() - point.y());
+}
+
+gfx::Point ScreenPointFromNSPoint(const NSPoint& point) {
+  return gfx::Point(point.x, PrimaryDisplayHeight() - point.y);
+}
+
 }  // namespace gfx