Don't explicitly initialize LayoutUnit to 0.

third_party/WebKit/Source/core/layout/LayoutView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 67 matching lines @@
 
 } // namespace
 
 LayoutView::LayoutView(Document* document)
     : LayoutBlockFlow(document)
     , m_frameView(document->view())
     , m_selectionStart(nullptr)
     , m_selectionEnd(nullptr)
     , m_selectionStartPos(-1)
     , m_selectionEndPos(-1)
-    , m_pageLogicalHeight(0)
     , m_pageLogicalHeightChanged(false)
     , m_layoutState(nullptr)
     , m_layoutQuoteHead(nullptr)
     , m_layoutCounterCount(0)
     , m_hitTestCount(0)
     , m_hitTestCacheHits(0)
     , m_hitTestCache(HitTestCache::create())
 {
     // init LayoutObject attributes
     setInline(false);
@@ skipping 938 matching lines @@
     // ASSERT(!frame()->isMainFrame()) here. All main frame scrolling should
     // be handled by the ViewportScrollCallback.
 
     if (!frameView())
         return ScrollResult(false, false, delta.width(), delta.height());
 
     return frameView()->getScrollableArea()->userScroll(granularity, delta);
 }
 
 } // namespace blink