Part 1 of merges for Chromium bug #64589...

WebCore/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009 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 270 matching lines @@
 #if USE(ACCELERATED_COMPOSITING)
     RenderLayerCompositor* compositor() const;
     
     // Notification from the renderer that its content changed (e.g. current frame of image changed).
     // Allows updates of layer content without repainting.
     void rendererContentChanged();
 #endif
 
     // Returns true if the accelerated compositing is enabled
     bool hasAcceleratedCompositing() const;
-    
+
+    bool canRender3DTransforms() const;
+
     void updateLayerPosition();
     
     enum UpdateLayerPositionsFlag {
         DoFullRepaint = 1,
         CheckForRepaint = 1 << 1,
         IsCompositingUpdateRoot = 1 << 2,
         UpdateCompositingLayers = 1 << 3,
         UpdatePagination = 1 << 4
     };
     typedef unsigned UpdateLayerPositionsFlags;
@@ skipping 389 matching lines @@
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const WebCore::RenderLayer*);
 void showLayerTree(const WebCore::RenderObject*);
 #endif
 
 #endif // RenderLayer_h