Hit test floats in visual painting order

third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 3252 matching lines @@
 {
     // If we are in the margins of block elements that are part of a
     // continuation we're actually still inside the enclosing element
     // that was split. Use the appropriate inner node.
     return isAnonymousBlockContinuation() ? continuation()->node() : node();
 }
 
 bool LayoutBlockFlow::hitTestChildren(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
 {
     LayoutPoint scrolledOffset(hasOverflowClip() ? accumulatedOffset - scrolledContentOffset() : accumulatedOffset);
+
+    if (hitTestAction == HitTestFloat && hitTestFloats(result, locationInContainer, scrolledOffset))
+        return true;
+
     if (childrenInline()) {
         if (m_lineBoxes.hitTest(LineLayoutBoxModel(this), result, locationInContainer, scrolledOffset, hitTestAction)) {
             updateHitTestResult(result, flipForWritingMode(toLayoutPoint(locationInContainer.point() - accumulatedOffset)));
             return true;
         }
     } else if (LayoutBlock::hitTestChildren(result, locationInContainer, accumulatedOffset, hitTestAction)) {
         return true;
     }
 
-    if (hitTestAction == HitTestFloat && hitTestFloats(result, locationInContainer, scrolledOffset))
-        return true;
-
     return false;
 }
 
 bool LayoutBlockFlow::hitTestFloats(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset)
 {
     if (!m_floatingObjects)
         return false;
 
     LayoutPoint adjustedLocation = accumulatedOffset;
     if (isLayoutView()) {
@@ skipping 482 matching lines @@
 
     return LayoutBlock::invalidatePaintIfNeeded(paintInvalidationState);
 }
 
 void LayoutBlockFlow::invalidateDisplayItemClients(PaintInvalidationReason invalidationReason) const
 {
     BlockFlowPaintInvalidator(*this).invalidateDisplayItemClients(invalidationReason);
 }
 
 } // namespace blink