Remove unused declarations of pageLogicalHeight.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 4734 matching lines @@
 bool LayoutBox::childNeedsRelayoutForPagination(const LayoutBox& child) const {
   // TODO(mstensho): Should try to get this to work for floats too, instead of
   // just marking and bailing here.
   if (child.isFloating())
     return true;
   const LayoutFlowThread* flowThread = child.flowThreadContainingBlock();
   LayoutUnit logicalTop = child.logicalTop();
   // Figure out if we really need to force re-layout of the child. We only need
   // to do this if there's a chance that we need to recalculate pagination
   // struts inside.
-  if (LayoutUnit pageLogicalHeight = pageLogicalHeightForOffset(logicalTop)) {
+  if (pageLogicalHeightForOffset(logicalTop)) {
     LayoutUnit logicalHeight = child.logicalHeightWithVisibleOverflow();
     LayoutUnit remainingSpace = pageRemainingLogicalHeightForOffset(
         logicalTop, AssociateWithLatterPage);
     if (child.offsetToNextPage()) {
       // We need to relayout unless we're going to break at the exact same
       // location as before.
       if (child.offsetToNextPage() != remainingSpace)
         return true;
       // If column height isn't guaranteed to be uniform, we have no way of
       // telling what has happened after the first break.
@@ skipping 928 matching lines @@
     block->adjustChildDebugRect(rect);
 
   return rect;
 }
 
 bool LayoutBox::shouldClipOverflow() const {
   return hasOverflowClip() || styleRef().containsPaint() || hasControlClip();
 }
 
 }  // namespace blink