Move line painting to BlockFlowPainter.

third_party/WebKit/Source/core/paint/BlockFlowPainter.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/BlockFlowPainter.h"
 
 #include "core/layout/FloatingObjects.h"
 #include "core/layout/LayoutBlockFlow.h"
-#include "core/paint/ClipScope.h"
-#include "core/paint/LayoutObjectDrawingRecorder.h"
+#include "core/paint/BlockPainter.h"
+#include "core/paint/LineBoxListPainter.h"
 #include "core/paint/ObjectPainter.h"
 #include "core/paint/PaintInfo.h"
-#include "core/paint/PaintLayer.h"
 
 namespace blink {
 
+void BlockFlowPainter::paintContents(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    // Avoid painting descendants of the root element when stylesheets haven't loaded. This eliminates FOUC.
+    // It's ok not to draw, because later on, when all the stylesheets do load, styleResolverMayHaveChanged()
+    // on Document will trigger a full paint invalidation.
+    if (m_layoutBlockFlow.document().didLayoutWithPendingStylesheets() && !m_layoutBlockFlow.isLayoutView())
+        return;
+
+    if (!m_layoutBlockFlow.childrenInline()) {
+        BlockPainter(m_layoutBlockFlow).paintContents(paintInfo, paintOffset);
+        return;
+    }
+    if (shouldPaintDescendantOutlines(paintInfo.phase))
+        ObjectPainter(m_layoutBlockFlow).paintInlineChildrenOutlines(paintInfo, paintOffset);
+    else
+        LineBoxListPainter(m_layoutBlockFlow.lineBoxes()).paint(m_layoutBlockFlow, paintInfo, paintOffset);
+}
+
 void BlockFlowPainter::paintFloats(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (!m_layoutBlockFlow.floatingObjects())
         return;
 
     ASSERT(paintInfo.phase == PaintPhaseFloat || paintInfo.phase == PaintPhaseSelection || paintInfo.phase == PaintPhaseTextClip);
     PaintInfo floatPaintInfo(paintInfo);
     if (paintInfo.phase == PaintPhaseFloat)
         floatPaintInfo.phase = PaintPhaseForeground;
 
     for (const auto& floatingObject : m_layoutBlockFlow.floatingObjects()->set()) {
         if (!floatingObject->shouldPaint())
             continue;
 
         const LayoutBox* floatingLayoutObject = floatingObject->layoutObject();
         if (floatingLayoutObject->hasSelfPaintingLayer())
             continue;
 
         // FIXME: LayoutPoint version of xPositionForFloatIncludingMargin would make this much cleaner.
         LayoutPoint childPoint = m_layoutBlockFlow.flipFloatForWritingModeForChild(
             *floatingObject, LayoutPoint(paintOffset.x()
             + m_layoutBlockFlow.xPositionForFloatIncludingMargin(*floatingObject) - floatingLayoutObject->location().x(), paintOffset.y()
             + m_layoutBlockFlow.yPositionForFloatIncludingMargin(*floatingObject) - floatingLayoutObject->location().y()));
         ObjectPainter(*floatingLayoutObject).paintAllPhasesAtomically(floatPaintInfo, childPoint);
     }
 }
 
 } // namespace blink