Even more explicit LayoutUnit conversion

third_party/WebKit/Source/core/layout/line/RootInlineBox.cpp

 /*
  * Copyright (C) 2003, 2006, 2008 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 116 matching lines @@
     // FIXME: Do we need an RTL version of this?
     if (ltr && (logicalLeft() + logicalWidth() + ellipsisWidth) <= blockRightEdge) {
         ellipsisBox->setLogicalLeft(logicalLeft() + logicalWidth());
         return logicalWidth() + ellipsisWidth;
     }
 
     // Now attempt to find the nearest glyph horizontally and place just to the right (or left in RTL)
     // of that glyph.  Mark all of the objects that intersect the ellipsis box as not painting (as being
     // truncated).
     bool foundBox = false;
-    LayoutUnit truncatedWidth = 0;
+    LayoutUnit truncatedWidth;
     LayoutUnit position = placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox);
     ellipsisBox->setLogicalLeft(position);
     return truncatedWidth;
 }
 
 LayoutUnit RootInlineBox::placeEllipsisBox(bool ltr, LayoutUnit blockLeftEdge, LayoutUnit blockRightEdge, LayoutUnit ellipsisWidth, LayoutUnit &truncatedWidth, bool& foundBox)
 {
     LayoutUnit result = InlineFlowBox::placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox);
     if (result == -1) {
         result = ltr ? blockRightEdge - ellipsisWidth : blockLeftEdge;
@@ skipping 41 matching lines @@
         prev->markDirty();
     }
 }
 
 LayoutUnit RootInlineBox::alignBoxesInBlockDirection(LayoutUnit heightOfBlock, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache)
 {
     // SVG will handle vertical alignment on its own.
     if (isSVGRootInlineBox())
         return 0;
 
-    LayoutUnit maxPositionTop = 0;
-    LayoutUnit maxPositionBottom = 0;
+    LayoutUnit maxPositionTop;
+    LayoutUnit maxPositionBottom;
     int maxAscent = 0;
     int maxDescent = 0;
     bool setMaxAscent = false;
     bool setMaxDescent = false;
 
     // Figure out if we're in no-quirks mode.
     bool noQuirksMode = lineLayoutItem().document().inNoQuirksMode();
 
     m_baselineType = dominantBaseline();
 
@@ skipping 32 matching lines @@
 
 LayoutUnit RootInlineBox::maxLogicalTop() const
 {
     LayoutUnit maxLogicalTop;
     computeMaxLogicalTop(maxLogicalTop);
     return maxLogicalTop;
 }
 
 LayoutUnit RootInlineBox::beforeAnnotationsAdjustment() const
 {
-    LayoutUnit result = 0;
+    LayoutUnit result;
 
     if (!lineLayoutItem().style()->isFlippedLinesWritingMode()) {
         // Annotations under the previous line may push us down.
         if (prevRootBox() && prevRootBox()->hasAnnotationsAfter())
             result = prevRootBox()->computeUnderAnnotationAdjustment(lineTop());
 
         if (!hasAnnotationsBefore())
             return result;
 
         // Annotations over this line may push us further down.
@@ skipping 348 matching lines @@
         firstLine = false;
 
     // Check the cache.
     bool isLayoutInline = boxModel.isLayoutInline();
     if (isLayoutInline && !firstLine) {
         LayoutUnit verticalPosition = verticalPositionCache.get(boxModel, baselineType());
         if (verticalPosition != PositionUndefined)
             return verticalPosition;
     }
 
-    LayoutUnit verticalPosition = 0;
+    LayoutUnit verticalPosition;
     EVerticalAlign verticalAlign = boxModel.style()->verticalAlign();
     if (verticalAlign == TOP || verticalAlign == BOTTOM)
         return 0;
 
     LineLayoutItem parent = boxModel.parent();
     if (parent.isLayoutInline() && parent.style()->verticalAlign() != TOP && parent.style()->verticalAlign() != BOTTOM)
         verticalPosition = box->parent()->logicalTop();
 
     if (verticalAlign != BASELINE) {
         const Font& font = parent.style(firstLine)->font();
@@ skipping 67 matching lines @@
     endBox = nullptr;
     return nullptr;
 }
 
 const char* RootInlineBox::boxName() const
 {
     return "RootInlineBox";
 }
 
 } // namespace blink