diff -r 000000000000 -r 4f2f89ce4247 WebCore/platform/HostWindow.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/HostWindow.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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
+ * 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. 
+ */
+
+#ifndef HostWindow_h
+#define HostWindow_h
+
+#include <wtf/Noncopyable.h>
+#include "Widget.h"
+
+namespace WebCore {
+
+class Cursor;
+
+class HostWindow : public Noncopyable {
+public:
+    virtual ~HostWindow() { }
+
+    // Requests the host invalidate the window, not the contents.  If immediate is true do so synchronously, otherwise async.
+    virtual void invalidateWindow(const IntRect& updateRect, bool immediate) = 0;
+
+    // Requests the host invalidate the contents and the window.  If immediate is true do so synchronously, otherwise async.
+    virtual void invalidateContentsAndWindow(const IntRect& updateRect, bool immediate) = 0;
+
+    // Requests the host scroll backingstore by the specified delta, rect to scroll, and clip rect.
+    virtual void scroll(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect) = 0;
+
+    // Requests the host invalidate the contents, not the window.  This is the slow path for scrolling.
+    virtual void invalidateContentsForSlowScroll(const IntRect& updateRect, bool immediate) = 0;
+    
+    // Methods for doing coordinate conversions to and from screen coordinates.
+    virtual IntPoint screenToWindow(const IntPoint&) const = 0;
+    virtual IntRect windowToScreen(const IntRect&) const = 0;
+
+    // Method for retrieving the native client of the page.
+    virtual PlatformPageClient platformPageClient() const = 0;
+    
+    // To notify WebKit of scrollbar mode changes.
+    virtual void scrollbarsModeDidChange() const = 0;
+
+    // Request that the cursor change.
+    virtual void setCursor(const Cursor&) = 0;
+};
+
+} // namespace WebCore
+
+#endif // HostWindow_h