CSS Transforms: Implement perspective

Source/core/rendering/RenderLayerModelObject.cpp

Index: Source/core/rendering/RenderLayerModelObject.cpp
diff --git a/Source/core/rendering/RenderLayerModelObject.cpp b/Source/core/rendering/RenderLayerModelObject.cpp
index aae53878e6fabc959c8d939dcd9bf5bc178ee454..21d37d640901d6d1df2b3dbade86d94db38ccd1c 100644
--- a/Source/core/rendering/RenderLayerModelObject.cpp
+++ b/Source/core/rendering/RenderLayerModelObject.cpp
@@ -157,6 +157,8 @@ void RenderLayerModelObject::styleDidChange(StyleDifference diff, const RenderSt
                     layer()->renderer()->setShouldDoFullRepaintAfterLayout(true);
                 else
                     layer()->repainter().setRepaintStatus(NeedsFullRepaint);
+                // Hit in animations/interpolation/perspective-interpolation.html
+                DisableCompositingQueryAsserts disabler;
                 // There is only one layer to update, it is not worth using |cachedOffset| since
                 // we are not sure the value will be used.
                 layer()->updateLayerPositions(0);