void BlockPainter::paintContinuationOutlines(const PaintInfo& info, const LayoutPoint& paintOffset)
{
    LayoutInline* inlineCont = m_layoutBlock.inlineElementContinuation();
    if (inlineCont && inlineCont->style()->hasOutline() && inlineCont->style()->visibility() == VISIBLE) {
        LayoutInline* inlineLayoutObject = toLayoutInline(inlineCont->node()->layoutObject());
        LayoutBlock* cb = m_layoutBlock.containingBlock();

        bool inlineEnclosedInSelfPaintingLayer = false;
        for (LayoutBoxModelObject* box = inlineLayoutObject; box != cb; box = box->parent()->enclosingBoxModelObject()) {
            if (box->hasSelfPaintingLayer()) {
                inlineEnclosedInSelfPaintingLayer = true;
                break;
            }
        }

        // Do not add continuations for outline painting by our containing block if we are a relative positioned
        // anonymous block (i.e. have our own layer), paint them straightaway instead. This is because a block depends on layoutObjects in its continuation table being
        // in the same layer.
        if (!inlineEnclosedInSelfPaintingLayer && !m_layoutBlock.hasLayer()) {
            cb->addContinuationWithOutline(inlineLayoutObject);
        } else if (!inlineLayoutObject->firstLineBox() || (!inlineEnclosedInSelfPaintingLayer && m_layoutBlock.hasLayer())) {
            // The outline might be painted multiple times if multiple blocks have the same inline element continuation, and the inline has a self-painting layer.
            ScopeRecorder scopeRecorder(*info.context);
            InlinePainter(*inlineLayoutObject).paintOutline(info, paintOffset - m_layoutBlock.locationOffset() + inlineLayoutObject->containingBlock()->location());
        }
    }

    ContinuationOutlineTableMap* table = continuationOutlineTable();
    if (table->isEmpty())
        return;

    OwnPtr<ListHashSet<LayoutInline*>> continuations = table->take(&m_layoutBlock);
    if (!continuations)
        return;

    LayoutPoint accumulatedPaintOffset = paintOffset;
    // Paint each continuation outline.
    ListHashSet<LayoutInline*>::iterator end = continuations->end();
    for (ListHashSet<LayoutInline*>::iterator it = continuations->begin(); it != end; ++it) {
        // Need to add in the coordinates of the intervening blocks.
        LayoutInline* flow = *it;
        LayoutBlock* block = flow->containingBlock();
        for ( ; block && block != &m_layoutBlock; block = block->containingBlock())
            accumulatedPaintOffset.moveBy(block->location());
        ASSERT(block);
        InlinePainter(*flow).paintOutline(info, accumulatedPaintOffset);
    }
}
void LineBoxListPainter::paint(RenderBoxModelObject* renderer, PaintInfo& paintInfo, const LayoutPoint& paintOffset) const
{
    // Only paint during the foreground/selection phases.
    if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseSelection && paintInfo.phase != PaintPhaseOutline
        && paintInfo.phase != PaintPhaseSelfOutline && paintInfo.phase != PaintPhaseChildOutlines && paintInfo.phase != PaintPhaseTextClip
        && paintInfo.phase != PaintPhaseMask)
        return;

    ASSERT(renderer->isRenderBlock() || (renderer->isRenderInline() && renderer->hasLayer())); // The only way an inline could paint like this is if it has a layer.

    // If we have no lines then we have no work to do.
    if (!m_renderLineBoxList.firstLineBox())
        return;

    if (!m_renderLineBoxList.anyLineIntersectsRect(renderer, paintInfo.rect, paintOffset))
        return;

    PaintInfo info(paintInfo);
    ListHashSet<RenderInline*> outlineObjects;
    info.setOutlineObjects(&outlineObjects);

    // See if our root lines intersect with the dirty rect. If so, then we paint
    // them. Note that boxes can easily overlap, so we can't make any assumptions
    // based off positions of our first line box or our last line box.
    for (InlineFlowBox* curr = m_renderLineBoxList.firstLineBox(); curr; curr = curr->nextLineBox()) {
        if (m_renderLineBoxList.lineIntersectsDirtyRect(renderer, curr, info, paintOffset)) {
            RootInlineBox& root = curr->root();
            curr->paint(info, paintOffset, root.lineTop(), root.lineBottom());
        }
    }

    if (info.phase == PaintPhaseOutline || info.phase == PaintPhaseSelfOutline || info.phase == PaintPhaseChildOutlines) {
        ListHashSet<RenderInline*>::iterator end = info.outlineObjects()->end();
        for (ListHashSet<RenderInline*>::iterator it = info.outlineObjects()->begin(); it != end; ++it) {
            RenderInline* flow = *it;
            InlinePainter(*flow).paintOutline(info, paintOffset);
        }
        info.outlineObjects()->clear();
    }
}