Move NSScrollerImpDetails to platform/mac/

Source/platform/mac/NSScrollerImpDetails.h

 /*
  * Copyright (C) 2011 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
@@ skipping 27 matching lines @@
 
 enum {
     NSScrollerKnobStyleDefault = 0,
     NSScrollerKnobStyleDark = 1,
     NSScrollerKnobStyleLight = 2
 };
 typedef NSInteger NSScrollerKnobStyle;
 #endif
 
 #if __MAC_OS_X_VERSION_MAX_ALLOWED == 1060
-@interface NSScroller(NSObject)
+PLATFORM_EXPORT @interface NSScroller(NSObject)
 + (NSScrollerStyle)preferredScrollerStyle;
 @end
 #endif
 
-@interface NSObject (ScrollbarPainter)
+PLATFORM_EXPORT @interface NSObject (ScrollbarPainter)
 + (id)scrollerImpWithStyle:(NSScrollerStyle)newScrollerStyle controlSize:(NSControlSize)newControlSize horizontal:(BOOL)horizontal replacingScrollerImp:(id)previous;
 - (CGFloat)knobAlpha;
 - (void)setKnobAlpha:(CGFloat)knobAlpha;
 - (CGFloat)trackAlpha;
 - (void)setTrackAlpha:(CGFloat)trackAlpha;
 - (void)setEnabled:(BOOL)enabled;
 - (void)setBoundsSize:(NSSize)boundsSize;
 - (void)setDoubleValue:(double)doubleValue;
 - (void)setKnobProportion:(CGFloat)proportion;
 - (void)setKnobStyle:(NSScrollerKnobStyle)knobStyle;
@@ skipping 12 matching lines @@
 - (CGFloat)knobEndInset;
 - (CGFloat)uiStateTransitionProgress;
 - (CGFloat)expansionTransitionProgress;
 - (NSRect)rectForPart:(NSScrollerPart)partCode;
 - (void)drawKnobSlotInRect:(NSRect)slotRect highlight:(BOOL)flag alpha:(CGFloat)alpha;
 - (void)drawKnob;
 - (void)mouseEnteredScroller;
 - (void)mouseExitedScroller;
 @end
 
-@interface NSObject (ScrollbarPainterController)
+PLATFORM_EXPORT @interface NSObject (ScrollbarPainterController)
 - (void)setDelegate:(id)delegate;
 - (void)hideOverlayScrollers;
 - (void)flashScrollers;
 - (id)horizontalScrollerImp;
 - (void)setHorizontalScrollerImp:(id)horizontal;
 - (id)verticalScrollerImp;
 - (void)setVerticalScrollerImp:(id)vertical;
 - (NSScrollerStyle)scrollerStyle;
 - (void)setScrollerStyle:(NSScrollerStyle)scrollerStyle;
 - (void)contentAreaScrolled;
 - (void)contentAreaScrolledInDirection:(NSPoint)direction;
 - (void)contentAreaWillDraw;
 - (void)mouseEnteredContentArea;
 - (void)mouseExitedContentArea;
 - (void)mouseMovedInContentArea;
 - (void)startLiveResize;
 - (void)contentAreaDidResize;
 - (void)endLiveResize;
 - (void)windowOrderedIn;
 - (void)windowOrderedOut;
 - (void)beginScrollGesture;
 - (void)endScrollGesture;
 @end
 
 namespace WebCore {
 
-bool isScrollbarOverlayAPIAvailable();
+PLATFORM_EXPORT bool isScrollbarOverlayAPIAvailable();
 
-NSScrollerStyle recommendedScrollerStyle();
+PLATFORM_EXPORT NSScrollerStyle recommendedScrollerStyle();
 
 }
 
 #endif