Fix paint invalidation issue on exiting printing

third_party/WebKit/Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
@@ skipping 572 matching lines @@
                                    : Document::FinishingPrinting);
   view()->adjustMediaTypeForPrinting(printing);
 
   if (shouldUsePrintingLayout()) {
     view()->forceLayoutForPagination(pageSize, originalPageSize,
                                      maximumShrinkRatio);
   } else {
     if (LayoutView* layoutView = view()->layoutView()) {
       layoutView->setPreferredLogicalWidthsDirty();
       layoutView->setNeedsLayout(LayoutInvalidationReason::PrintingChanged);
-      if (!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled())
-        layoutView->setShouldDoFullPaintInvalidationForViewAndAllDescendants();
+      layoutView->setShouldDoFullPaintInvalidationForViewAndAllDescendants();
     }
     view()->layout();
     view()->adjustViewSize();
   }
 
   // Subframes of the one we're printing don't lay out to the page size.
   for (Frame* child = tree().firstChild(); child;
        child = child->tree().nextSibling()) {
     if (child->isLocalFrame())
       toLocalFrame(child)->setPrinting(printing, FloatSize(), FloatSize(), 0);
@@ skipping 334 matching lines @@
   if (m_frame && m_frame->client() && m_frame->client()->frameBlameContext())
     m_frame->client()->frameBlameContext()->Enter();
 }
 
 ScopedFrameBlamer::~ScopedFrameBlamer() {
   if (m_frame && m_frame->client() && m_frame->client()->frameBlameContext())
     m_frame->client()->frameBlameContext()->Leave();
 }
 
 }  // namespace blink