[Reland] Remove PaintInfo's paintingRoot

third_party/WebKit/Source/core/paint/InlineTextBoxPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/InlineTextBoxPainter.h"
 
 #include "core/editing/CompositionUnderline.h"
 #include "core/editing/Editor.h"
 #include "core/editing/markers/DocumentMarkerController.h"
 #include "core/editing/markers/RenderedDocumentMarker.h"
@@ skipping 242 matching lines @@
     // When painting selection, we want to include a highlight when the
     // selection spans line breaks. In other cases such as invisible elements
     // or those with no text that are not line breaks, we can skip painting
     // wholesale.
     // TODO(wkorman): Constrain line break painting to appropriate paint phase.
     // This code path is only called in PaintPhaseForeground whereas we would
     // expect PaintPhaseSelection. The existing haveSelection logic in paint()
     // tests for != PaintPhaseTextClip.
     bool paintLineBreaks = RuntimeEnabledFeatures::selectionPaintingWithoutSelectionGapsEnabled();
     if ((!paintLineBreaks && m_inlineTextBox.isLineBreak())
-        || !paintInfo.shouldPaintWithinRoot(LineLayoutPaintShim::layoutObjectFrom(m_inlineTextBox.lineLayoutItem()))
         || m_inlineTextBox.lineLayoutItem().style()->visibility() != VISIBLE
         || m_inlineTextBox.truncation() == cFullTruncation
         || !m_inlineTextBox.len())
         return false;
     return true;
 }
 
 unsigned InlineTextBoxPainter::underlinePaintStart(const CompositionUnderline& underline)
 {
     return std::max(static_cast<unsigned>(m_inlineTextBox.start()), underline.startOffset);
@@ skipping 596 matching lines @@
 
     Color color = LayoutTheme::theme().platformTextSearchHighlightColor(marker->activeMatch());
     GraphicsContext& context = paintInfo.context;
     GraphicsContextStateSaver stateSaver(context);
     context.clip(FloatRect(boxOrigin.x().toFloat(), (boxOrigin.y() - deltaY).toFloat(), m_inlineTextBox.logicalWidth().toFloat(), selHeight));
     context.drawHighlightForText(font, run, FloatPoint(boxOrigin.x().toFloat(), (boxOrigin.y() - deltaY).toFloat()), selHeight, color, sPos, ePos);
 }
 
 
 } // namespace blink