Add autoresize capability for Chromium.

Source/WebKit/chromium/src/ChromeClientImpl.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 99 matching lines @@
     virtual void invalidateContentsForSlowScroll(const WebCore::IntRect&, bool);
 #if ENABLE(REQUEST_ANIMATION_FRAME)
     virtual void scheduleAnimation();
 #endif
     virtual void scroll(
         const WebCore::IntSize& scrollDelta, const WebCore::IntRect& rectToScroll,
         const WebCore::IntRect& clipRect);
     virtual WebCore::IntPoint screenToRootView(const WebCore::IntPoint&) const;
     virtual WebCore::IntRect rootViewToScreen(const WebCore::IntRect&) const;
     virtual PlatformPageClient platformPageClient() const { return 0; }
+    virtual void layoutBeforeScrollbarUpdate(WebCore::Frame*);
     virtual void contentsSizeChanged(WebCore::Frame*, const WebCore::IntSize&) const;
     virtual void layoutUpdated(WebCore::Frame*) const;
     virtual void scrollRectIntoView(
         const WebCore::IntRect&) const { }
     virtual void scrollbarsModeDidChange() const;
     virtual void mouseDidMoveOverElement(
         const WebCore::HitTestResult& result, unsigned modifierFlags);
     virtual void setToolTip(const WTF::String& tooltipText, WebCore::TextDirection);
     virtual void print(WebCore::Frame*);
     virtual void exceededDatabaseQuota(
@@ skipping 77 matching lines @@
     bool m_toolbarsVisible;
     bool m_statusbarVisible;
     bool m_scrollbarsVisible;
     bool m_menubarVisible;
     bool m_resizable;
 };
 
 } // namespace WebKit
 
 #endif