Add 'printing' flag to PaintInfo

Source/core/paint/FramePainter.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/FramePainter.h"
 
 #include "core/dom/DocumentMarkerController.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/frame/FrameView.h"
@@ skipping 92 matching lines @@
     FontCachePurgePreventer fontCachePurgePreventer;
 
     PaintBehavior oldPaintBehavior = m_frameView.paintBehavior();
 
     if (FrameView* parentView = m_frameView.parentFrameView()) {
         if (parentView->paintBehavior() & PaintBehaviorFlattenCompositingLayers)
             m_frameView.setPaintBehavior(m_frameView.paintBehavior() | PaintBehaviorFlattenCompositingLayers);
     }
 
     if (document->printing())
-        m_frameView.setPaintBehavior(m_frameView.paintBehavior() | PaintBehaviorFlattenCompositingLayers);
+        m_frameView.setPaintBehavior(m_frameView.paintBehavior() | PaintBehaviorFlattenCompositingLayers | PaintBehaviorPrinting);
 
     ASSERT(!m_frameView.isPainting());
     m_frameView.setIsPainting(true);
 
     // m_frameView.nodeToDraw() is used to draw only one element (and its descendants)
     LayoutObject* layoutObject = m_frameView.nodeToDraw() ? m_frameView.nodeToDraw()->layoutObject() : 0;
     DeprecatedPaintLayer* rootLayer = layoutView->layer();
 
 #if ENABLE(ASSERT)
     layoutView->assertSubtreeIsLaidOut();
@@ skipping 65 matching lines @@
     if (needsBackground) {
         IntRect toFill = bar->frameRect();
         toFill.intersect(rect);
         context->fillRect(toFill, m_frameView.baseBackgroundColor());
     }
 
     bar->paint(context, rect);
 }
 
 } // namespace blink