Prepare ui/ module for compilation with OS X 10.7 deployment target.

ui/base/cocoa/cocoa_base_utils.h

 // 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.
 
 #ifndef UI_BASE_COCOA_COCOA_BASE_UTILS_H_
 #define UI_BASE_COCOA_COCOA_BASE_UTILS_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "ui/base/ui_base_export.h"
 #include "ui/base/window_open_disposition.h"
 
 namespace ui {
 
 // Retrieves the WindowOpenDisposition used to open a link from a user gesture
 // represented by |event|. For example, a Cmd+Click would mean open the
 // associated link in a background tab.
 UI_BASE_EXPORT WindowOpenDisposition
     WindowOpenDispositionFromNSEvent(NSEvent* event);
 
 // Retrieves the WindowOpenDisposition used to open a link from a user gesture
 // represented by |event|, but instead use the modifier flags given by |flags|,
 // which is the same format as |-NSEvent modifierFlags|. This allows
 // substitution of the modifiers without having to create a new event from
 // scratch.
 UI_BASE_EXPORT WindowOpenDisposition
     WindowOpenDispositionFromNSEventWithFlags(NSEvent* event, NSUInteger flags);
 
+// Converts a point from window coordinates to screen coordinates.
+UI_BASE_EXPORT NSPoint ConvertPointFromWindowToScreen(NSWindow* window,
+                                                      NSPoint point);
+
+// Converts a point from screen coordinates to window coordinates.
+UI_BASE_EXPORT NSPoint ConvertPointFromScreenToWindow(NSWindow* window,
+                                                      NSPoint point);
+
 }  // namespace ui
 
 #endif  // UI_BASE_COCOA_COCOA_BASE_UTILS_H_