diff -r 000000000000 -r 4f2f89ce4247 WebKit/mac/WebView/WebDynamicScrollBarsViewInternal.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/mac/WebView/WebDynamicScrollBarsViewInternal.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2005, 2008 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. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE 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 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.
+ */
+
+#import "WebDynamicScrollBarsView.h"
+#import <WebCore/WebCoreFrameView.h>
+
+@interface WebDynamicScrollBarsView (WebInternal) <WebCoreFrameScrollView>
+
+- (BOOL)allowsHorizontalScrolling;
+- (BOOL)allowsVerticalScrolling;
+
+- (void)setScrollingModes:(WebCore::ScrollbarMode)hMode vertical:(WebCore::ScrollbarMode)vMode andLock:(BOOL)lock;
+- (void)scrollingModes:(WebCore::ScrollbarMode*)hMode vertical:(WebCore::ScrollbarMode*)vMode;
+
+- (WebCore::ScrollbarMode)horizontalScrollingMode;
+- (WebCore::ScrollbarMode)verticalScrollingMode;
+
+- (void)setHorizontalScrollingMode:(WebCore::ScrollbarMode)mode andLock:(BOOL)lock;
+- (void)setVerticalScrollingMode:(WebCore::ScrollbarMode)mode andLock:(BOOL)lock;
+
+- (void)setHorizontalScrollingModeLocked:(BOOL)locked;
+- (void)setVerticalScrollingModeLocked:(BOOL)locked;
+- (void)setScrollingModesLocked:(BOOL)mode;
+
+- (BOOL)horizontalScrollingModeLocked;
+- (BOOL)verticalScrollingModeLocked;
+
+- (void)updateScrollers;
+- (void)setSuppressLayout:(BOOL)flag;
+
+// Calculate the appropriate frame for the contentView based on allowsScrollersToOverlapContent.
+- (NSRect)contentViewFrame;
+@end