Add 'printing' flag to PaintInfo

Source/core/paint/ObjectPainter.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 "config.h"
 #include "core/paint/ObjectPainter.h"
 
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTheme.h"
 #include "core/paint/BoxBorderPainter.h"
@@ skipping 52 matching lines @@
     int outlineWidth = styleToUse.outlineWidth();
     outer.inflate(outlineWidth);
 
     const BorderEdge commonEdgeInfo(outlineWidth,
         m_layoutObject.resolveColor(styleToUse, CSSPropertyOutlineColor), styleToUse.outlineStyle());
     BoxBorderPainter(styleToUse, outer, inner, commonEdgeInfo).paintBorder(paintInfo, outer);
 }
 
 void ObjectPainter::addPDFURLRectIfNeeded(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
-    ASSERT(paintInfo.context->printing());
+    ASSERT(paintInfo.isPrinting());
     if (m_layoutObject.isElementContinuation() || !m_layoutObject.node() || !m_layoutObject.node()->isLink() || m_layoutObject.styleRef().visibility() != VISIBLE)
         return;
 
     KURL url = toElement(m_layoutObject.node())->hrefURL();
     if (!url.isValid())
         return;
 
     Vector<LayoutRect> focusRingRects;
     m_layoutObject.addFocusRingRects(focusRingRects, paintOffset);
     IntRect rect = pixelSnappedIntRect(unionRect(focusRingRects));
@@ skipping 256 matching lines @@
         quad[1] = FloatPoint(x1, y2 - std::max(adjacentWidth2, 0));
         quad[2] = FloatPoint(x2, y2 - std::max(-adjacentWidth2, 0));
         quad[3] = FloatPoint(x2, y1 + std::max(-adjacentWidth1, 0));
         break;
     }
 
     graphicsContext->fillPolygon(4, quad, color, antialias);
 }
 
 } // namespace blink