Get rid of Chrome, use Page.

sky/engine/core/rendering/RenderLayerScrollableArea.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 32 matching lines @@
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/rendering/RenderLayer.h"
 
 #include "sky/engine/core/dom/Node.h"
 #include "sky/engine/core/dom/shadow/ShadowRoot.h"
 #include "sky/engine/core/editing/FrameSelection.h"
 #include "sky/engine/core/frame/FrameView.h"
 #include "sky/engine/core/frame/LocalFrame.h"
 #include "sky/engine/core/inspector/InspectorTraceEvents.h"
-#include "sky/engine/core/page/Chrome.h"
 #include "sky/engine/core/page/EventHandler.h"
 #include "sky/engine/core/page/FocusController.h"
 #include "sky/engine/core/page/Page.h"
 #include "sky/engine/core/rendering/HitTestResult.h"
 #include "sky/engine/core/rendering/RenderGeometryMap.h"
 #include "sky/engine/core/rendering/RenderView.h"
 #include "sky/engine/platform/graphics/GraphicsContextStateSaver.h"
 #include "sky/engine/platform/scroll/ScrollAnimator.h"
 #include "sky/engine/platform/scroll/Scrollbar.h"
 #include "sky/engine/public/platform/Platform.h"
@@ skipping 28 matching lines @@
         if (node && node->isElementNode())
             toElement(node)->setSavedLayerScrollOffset(m_scrollOffset);
     }
 
     destroyScrollbar(HorizontalScrollbar);
     destroyScrollbar(VerticalScrollbar);
 }
 
 HostWindow* RenderLayerScrollableArea::hostWindow() const
 {
-    if (Page* page = box().frame()->page())
-        return &page->chrome();
-    return nullptr;
+    return box().frame()->page();
 }
 
 bool RenderLayerScrollableArea::isActive() const
 {
     Page* page = box().frame()->page();
     return page && page->focusController().isActive();
 }
 
 static int cornerStart(const RenderStyle* style, int minX, int maxX, int thickness)
 {
@@ skipping 576 matching lines @@
 void RenderLayerScrollableArea::setTopmostScrollChild(RenderLayer* scrollChild)
 {
     // We only want to track the topmost scroll child for scrollable areas with
     // overlay scrollbars.
     if (!hasOverlayScrollbars())
         return;
     m_nextTopmostScrollChild = scrollChild;
 }
 
 } // namespace blink