Split cocoa_event_utils in two parts.

ui/base/cocoa/cocoa_event_utils.h

-// 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.
-
-#ifndef UI_BASE_COCOA_COCOA_EVENT_UTILS_H_
-#define UI_BASE_COCOA_COCOA_EVENT_UTILS_H_
-
-#import <Cocoa/Cocoa.h>
-
-#include "ui/base/ui_base_export.h"
-#include "ui/base/window_open_disposition.h"
-
-namespace ui {
-
-// Retrieves a bitsum of ui::EventFlags represented by |event|,
-UI_BASE_EXPORT int EventFlagsFromNSEvent(NSEvent* event);
-
-// Converts the Cocoa |modifiers| bitsum into a ui::EventFlags bitsum.
-UI_BASE_EXPORT int EventFlagsFromModifiers(NSUInteger modifiers);
-
-// Retrieves a bitsum of ui::EventFlags represented by |event|,
-// but instead use the modifier flags given by |modifiers|,
-// 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 int EventFlagsFromNSEventWithModifiers(NSEvent* event,
-                                                      NSUInteger modifiers);
-
-// 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);
-
-}  // namespace ui
-
-#endif  // UI_BASE_COCOA_COCOA_EVENT_UTILS_H_