Advance document lifecycle to CompositingClean prior to hit testing

Source/core/paint/DeprecatedPaintLayer.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 1790 matching lines @@
 // transformState.m_accumulatedTransform holds the transform from the containing flattening layer.
 // transformState.m_lastPlanarPoint is the hitTestLocation in the plane of the containing flattening layer.
 // transformState.m_lastPlanarQuad is the hitTestRect as a quad in the plane of the containing flattening layer.
 //
 // If zOffset is non-null (which indicates that the caller wants z offset information),
 //  *zOffset on return is the z offset of the hit point relative to the containing flattening layer.
 DeprecatedPaintLayer* DeprecatedPaintLayer::hitTestLayer(DeprecatedPaintLayer* rootLayer, DeprecatedPaintLayer* containerLayer, const HitTestRequest& request, HitTestResult& result,
     const LayoutRect& hitTestRect, const HitTestLocation& hitTestLocation, bool appliedTransform,
     const HitTestingTransformState* transformState, double* zOffset)
 {
+    ASSERT(layoutObject()->document().lifecycle().state() >= DocumentLifecycle::CompositingClean);
+
     if (!isSelfPaintingLayer() && !hasSelfPaintingLayerDescendant())
         return 0;
 
     // The natural thing would be to keep HitTestingTransformState on the stack, but it's big, so we heap-allocate.
 
     // Apply a transform if we have one.
     if (transform() && !appliedTransform) {
         if (enclosingPaginationLayer())
             return hitTestTransformedLayerInFragments(rootLayer, containerLayer, request, result, hitTestRect, hitTestLocation, transformState, zOffset);
 
@@ skipping 1152 matching lines @@
     }
 }
 
 void showLayerTree(const blink::LayoutObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif