Merge most of LayoutBox::mapLocalToAncestor() into LayoutObject.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2187 matching lines @@
     return transformState.lastPlanarQuad();
 }
 
 void LayoutObject::mapLocalToAncestor(const LayoutBoxModelObject* ancestor, TransformState& transformState, MapCoordinatesFlags mode, bool* wasFixed, const PaintInvalidationState* paintInvalidationState) const
 {
     if (ancestor == this)
         return;
 
     if (paintInvalidationState && paintInvalidationState->canMapToContainer(ancestor)) {
         LayoutSize offset = paintInvalidationState->paintOffset();
+        if (const LayoutBox* layoutBox = isBox() ? toLayoutBox(this) : nullptr)
+            offset += layoutBox->locationOffset();
         if (const PaintLayer* layer = style()->hasInFlowPosition() && hasLayer() ? toLayoutBoxModelObject(this)->layer() : nullptr)
             offset += layer->offsetForInFlowPosition();
         transformState.move(offset);
         return;
     }
 
+    if (wasFixed)
+        *wasFixed = mode & IsFixed;
+
     bool containerSkipped;
     const LayoutObject* o = container(ancestor, &containerSkipped);
     if (!o)
         return;
 
-    if (mode & ApplyContainerFlip && o->isBox()) {
-        if (o->style()->isFlippedBlocksWritingMode()) {
-            IntPoint centerPoint = roundedIntPoint(transformState.mappedPoint());
-            transformState.move(toLayoutBox(o)->flipForWritingMode(LayoutPoint(centerPoint)) - centerPoint);
+    if (mode & ApplyContainerFlip) {
+        if (isBox()) {
+            mode &= ~ApplyContainerFlip;
+        } else if (o->isBox()) {
+            if (o->style()->isFlippedBlocksWritingMode()) {
+                IntPoint centerPoint = roundedIntPoint(transformState.mappedPoint());
+                transformState.move(toLayoutBox(o)->flipForWritingMode(LayoutPoint(centerPoint)) - centerPoint);
+            }
+            mode &= ~ApplyContainerFlip;
         }
-        mode &= ~ApplyContainerFlip;
     }
 
     LayoutSize containerOffset = offsetFromContainer(o, roundedLayoutPoint(transformState.mappedPoint()));
 
     // Text objects just copy their parent's computed style, so we need to ignore them.
     bool preserve3D = mode & UseTransforms && ((o->style()->preserves3D() && !o->isText()) || (style()->preserves3D() && !isText()));
     if (mode & UseTransforms && shouldUseTransformFromContainer(o)) {
         TransformationMatrix t;
         getTransformFromContainer(o, containerOffset, t);
         transformState.applyTransform(t, preserve3D ? TransformState::AccumulateTransform : TransformState::FlattenTransform);
@@ skipping 1404 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");
     }
 }
 
 #endif