Remove all of WebCore/platform/mac which is not mentioned in WebCore.gypi.

Source/WebCore/platform/mac/WebVideoFullscreenHUDWindowController.h

-/*
- * Copyright (C) 2009 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#if ENABLE(VIDEO)
-
-#import <AppKit/NSButton.h>
-#import <AppKit/NSControl.h>
-#import <AppKit/NSTextField.h>
-#import <AppKit/NSTrackingArea.h>
-#import <AppKit/NSWindow.h>
-#import <AppKit/NSWindowController.h>
-
-namespace WebCore {
-    class HTMLMediaElement;
-}
-
-@protocol WebVideoFullscreenHUDWindowControllerDelegate;
-
-@interface WebVideoFullscreenHUDWindowController : NSWindowController
-{
-    id <WebVideoFullscreenHUDWindowControllerDelegate> _delegate;
-    NSTimer *_timelineUpdateTimer;
-    NSTrackingArea *_area;
-    BOOL _mouseIsInHUD;
-    BOOL _isEndingFullscreen;
-    BOOL _isScrubbing;
-
-    NSControl *_timeline;
-    NSTextField *_remainingTimeText;
-    NSTextField *_elapsedTimeText;
-    NSControl *_volumeSlider;
-    NSButton *_playButton;
-}
-
-- (id <WebVideoFullscreenHUDWindowControllerDelegate>)delegate;
-- (void)setDelegate:(id <WebVideoFullscreenHUDWindowControllerDelegate>)delegate;
-- (void)fadeWindowIn;
-- (void)fadeWindowOut;
-- (void)closeWindow;
-- (void)updateRate;
-
-@end
-
-@protocol WebVideoFullscreenHUDWindowControllerDelegate <NSObject>
-- (void)requestExitFullscreen;
-- (WebCore::HTMLMediaElement*)mediaElement;
-@end
-
-#endif